diff --git a/builds/msvc/vs2013/libbitcoin-client-examples/libbitcoin-client-examples.vcxproj b/builds/msvc/vs2013/libbitcoin-client-examples/libbitcoin-client-examples.vcxproj
index bb58c87..b0c6e9d 100644
--- a/builds/msvc/vs2013/libbitcoin-client-examples/libbitcoin-client-examples.vcxproj
+++ b/builds/msvc/vs2013/libbitcoin-client-examples/libbitcoin-client-examples.vcxproj
@@ -78,19 +78,19 @@
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets" />
   <ImportGroup Label="ExtensionSettings">
-    <Import Project="$(NuGetPackageRoot)boost.1.62.0.0\build\native\boost.targets" Condition="Exists('$(NuGetPackageRoot)boost.1.62.0.0\build\native\boost.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_atomic-vc120.1.62.0.0\build\native\boost_atomic-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_atomic-vc120.1.62.0.0\build\native\boost_atomic-vc120.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_chrono-vc120.1.62.0.0\build\native\boost_chrono-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_chrono-vc120.1.62.0.0\build\native\boost_chrono-vc120.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_date_time-vc120.1.62.0.0\build\native\boost_date_time-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_date_time-vc120.1.62.0.0\build\native\boost_date_time-vc120.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_filesystem-vc120.1.62.0.0\build\native\boost_filesystem-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_filesystem-vc120.1.62.0.0\build\native\boost_filesystem-vc120.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_iostreams-vc120.1.62.0.0\build\native\boost_iostreams-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_iostreams-vc120.1.62.0.0\build\native\boost_iostreams-vc120.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_locale-vc120.1.62.0.0\build\native\boost_locale-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_locale-vc120.1.62.0.0\build\native\boost_locale-vc120.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_log_setup-vc120.1.62.0.0\build\native\boost_log_setup-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_log_setup-vc120.1.62.0.0\build\native\boost_log_setup-vc120.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_log-vc120.1.62.0.0\build\native\boost_log-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_log-vc120.1.62.0.0\build\native\boost_log-vc120.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_program_options-vc120.1.62.0.0\build\native\boost_program_options-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_program_options-vc120.1.62.0.0\build\native\boost_program_options-vc120.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_regex-vc120.1.62.0.0\build\native\boost_regex-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_regex-vc120.1.62.0.0\build\native\boost_regex-vc120.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_system-vc120.1.62.0.0\build\native\boost_system-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_system-vc120.1.62.0.0\build\native\boost_system-vc120.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_thread-vc120.1.62.0.0\build\native\boost_thread-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_thread-vc120.1.62.0.0\build\native\boost_thread-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost.1.57.0.0\build\native\boost.targets" Condition="Exists('$(NuGetPackageRoot)boost.1.57.0.0\build\native\boost.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_atomic-vc120.1.57.0.0\build\native\boost_atomic-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_atomic-vc120.1.57.0.0\build\native\boost_atomic-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_chrono-vc120.1.57.0.0\build\native\boost_chrono-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_chrono-vc120.1.57.0.0\build\native\boost_chrono-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_date_time-vc120.1.57.0.0\build\native\boost_date_time-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_date_time-vc120.1.57.0.0\build\native\boost_date_time-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_filesystem-vc120.1.57.0.0\build\native\boost_filesystem-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_filesystem-vc120.1.57.0.0\build\native\boost_filesystem-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_iostreams-vc120.1.57.0.0\build\native\boost_iostreams-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_iostreams-vc120.1.57.0.0\build\native\boost_iostreams-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_locale-vc120.1.57.0.0\build\native\boost_locale-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_locale-vc120.1.57.0.0\build\native\boost_locale-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_log_setup-vc120.1.57.0.0\build\native\boost_log_setup-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_log_setup-vc120.1.57.0.0\build\native\boost_log_setup-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_log-vc120.1.57.0.0\build\native\boost_log-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_log-vc120.1.57.0.0\build\native\boost_log-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_program_options-vc120.1.57.0.0\build\native\boost_program_options-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_program_options-vc120.1.57.0.0\build\native\boost_program_options-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_regex-vc120.1.57.0.0\build\native\boost_regex-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_regex-vc120.1.57.0.0\build\native\boost_regex-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_system-vc120.1.57.0.0\build\native\boost_system-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_system-vc120.1.57.0.0\build\native\boost_system-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_thread-vc120.1.57.0.0\build\native\boost_thread-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_thread-vc120.1.57.0.0\build\native\boost_thread-vc120.targets')" />
     <Import Project="$(NuGetPackageRoot)secp256k1_vc120.0.1.0.16\build\native\secp256k1_vc120.targets" Condition="Exists('$(NuGetPackageRoot)secp256k1_vc120.0.1.0.16\build\native\secp256k1_vc120.targets')" />
     <Import Project="$(NuGetPackageRoot)libzmq_vc120.4.2.30\build\native\libzmq_vc120.targets" Condition="Exists('$(NuGetPackageRoot)libzmq_vc120.4.2.30\build\native\libzmq_vc120.targets')" />
   </ImportGroup>
@@ -98,19 +98,19 @@
     <PropertyGroup>
       <ErrorText>This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
     </PropertyGroup>
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost.1.62.0.0\build\native\boost.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost.1.62.0.0\build\native\boost.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_atomic-vc120.1.62.0.0\build\native\boost_atomic-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_atomic-vc120.1.62.0.0\build\native\boost_atomic-vc120.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_chrono-vc120.1.62.0.0\build\native\boost_chrono-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_chrono-vc120.1.62.0.0\build\native\boost_chrono-vc120.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_date_time-vc120.1.62.0.0\build\native\boost_date_time-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_date_time-vc120.1.62.0.0\build\native\boost_date_time-vc120.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_filesystem-vc120.1.62.0.0\build\native\boost_filesystem-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_filesystem-vc120.1.62.0.0\build\native\boost_filesystem-vc120.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_iostreams-vc120.1.62.0.0\build\native\boost_iostreams-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_iostreams-vc120.1.62.0.0\build\native\boost_iostreams-vc120.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_locale-vc120.1.62.0.0\build\native\boost_locale-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_locale-vc120.1.62.0.0\build\native\boost_locale-vc120.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_log_setup-vc120.1.62.0.0\build\native\boost_log_setup-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_log_setup-vc120.1.62.0.0\build\native\boost_log_setup-vc120.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_log-vc120.1.62.0.0\build\native\boost_log-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_log-vc120.1.62.0.0\build\native\boost_log-vc120.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_program_options-vc120.1.62.0.0\build\native\boost_program_options-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_program_options-vc120.1.62.0.0\build\native\boost_program_options-vc120.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_regex-vc120.1.62.0.0\build\native\boost_regex-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_regex-vc120.1.62.0.0\build\native\boost_regex-vc120.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_system-vc120.1.62.0.0\build\native\boost_system-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_system-vc120.1.62.0.0\build\native\boost_system-vc120.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_thread-vc120.1.62.0.0\build\native\boost_thread-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_thread-vc120.1.62.0.0\build\native\boost_thread-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost.1.57.0.0\build\native\boost.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost.1.57.0.0\build\native\boost.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_atomic-vc120.1.57.0.0\build\native\boost_atomic-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_atomic-vc120.1.57.0.0\build\native\boost_atomic-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_chrono-vc120.1.57.0.0\build\native\boost_chrono-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_chrono-vc120.1.57.0.0\build\native\boost_chrono-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_date_time-vc120.1.57.0.0\build\native\boost_date_time-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_date_time-vc120.1.57.0.0\build\native\boost_date_time-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_filesystem-vc120.1.57.0.0\build\native\boost_filesystem-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_filesystem-vc120.1.57.0.0\build\native\boost_filesystem-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_iostreams-vc120.1.57.0.0\build\native\boost_iostreams-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_iostreams-vc120.1.57.0.0\build\native\boost_iostreams-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_locale-vc120.1.57.0.0\build\native\boost_locale-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_locale-vc120.1.57.0.0\build\native\boost_locale-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_log_setup-vc120.1.57.0.0\build\native\boost_log_setup-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_log_setup-vc120.1.57.0.0\build\native\boost_log_setup-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_log-vc120.1.57.0.0\build\native\boost_log-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_log-vc120.1.57.0.0\build\native\boost_log-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_program_options-vc120.1.57.0.0\build\native\boost_program_options-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_program_options-vc120.1.57.0.0\build\native\boost_program_options-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_regex-vc120.1.57.0.0\build\native\boost_regex-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_regex-vc120.1.57.0.0\build\native\boost_regex-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_system-vc120.1.57.0.0\build\native\boost_system-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_system-vc120.1.57.0.0\build\native\boost_system-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_thread-vc120.1.57.0.0\build\native\boost_thread-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_thread-vc120.1.57.0.0\build\native\boost_thread-vc120.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)secp256k1_vc120.0.1.0.16\build\native\secp256k1_vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)secp256k1_vc120.0.1.0.16\build\native\secp256k1_vc120.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)libzmq_vc120.4.2.30\build\native\libzmq_vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)libzmq_vc120.4.2.30\build\native\libzmq_vc120.targets'))" />
   </Target>
diff --git a/builds/msvc/vs2013/libbitcoin-client-examples/packages.config b/builds/msvc/vs2013/libbitcoin-client-examples/packages.config
index 9bc5a0f..570c45d 100644
--- a/builds/msvc/vs2013/libbitcoin-client-examples/packages.config
+++ b/builds/msvc/vs2013/libbitcoin-client-examples/packages.config
@@ -6,19 +6,19 @@
  |
  -->
 <packages>
-  <package id="boost" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_atomic-vc120" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_chrono-vc120" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_date_time-vc120" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_filesystem-vc120" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_iostreams-vc120" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_locale-vc120" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_log_setup-vc120" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_log-vc120" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_program_options-vc120" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_regex-vc120" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_system-vc120" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_thread-vc120" version="1.62.0.0" targetFramework="Native" />
+  <package id="boost" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_atomic-vc120" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_chrono-vc120" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_date_time-vc120" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_filesystem-vc120" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_iostreams-vc120" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_locale-vc120" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_log_setup-vc120" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_log-vc120" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_program_options-vc120" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_regex-vc120" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_system-vc120" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_thread-vc120" version="1.57.0.0" targetFramework="Native" />
   <package id="secp256k1_vc120" version="0.1.0.16" targetFramework="Native" />
   <package id="libzmq_vc120" version="4.2.30" targetFramework="Native" />
 </packages>
diff --git a/builds/msvc/vs2013/libbitcoin-client-test/libbitcoin-client-test.vcxproj b/builds/msvc/vs2013/libbitcoin-client-test/libbitcoin-client-test.vcxproj
index 8463ea1..e4a4e3b 100644
--- a/builds/msvc/vs2013/libbitcoin-client-test/libbitcoin-client-test.vcxproj
+++ b/builds/msvc/vs2013/libbitcoin-client-test/libbitcoin-client-test.vcxproj
@@ -79,43 +79,43 @@
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets" />
   <ImportGroup Label="ExtensionSettings">
-    <Import Project="$(NuGetPackageRoot)boost.1.62.0.0\build\native\boost.targets" Condition="Exists('$(NuGetPackageRoot)boost.1.62.0.0\build\native\boost.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_atomic-vc120.1.62.0.0\build\native\boost_atomic-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_atomic-vc120.1.62.0.0\build\native\boost_atomic-vc120.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_chrono-vc120.1.62.0.0\build\native\boost_chrono-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_chrono-vc120.1.62.0.0\build\native\boost_chrono-vc120.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_date_time-vc120.1.62.0.0\build\native\boost_date_time-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_date_time-vc120.1.62.0.0\build\native\boost_date_time-vc120.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_filesystem-vc120.1.62.0.0\build\native\boost_filesystem-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_filesystem-vc120.1.62.0.0\build\native\boost_filesystem-vc120.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_iostreams-vc120.1.62.0.0\build\native\boost_iostreams-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_iostreams-vc120.1.62.0.0\build\native\boost_iostreams-vc120.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_locale-vc120.1.62.0.0\build\native\boost_locale-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_locale-vc120.1.62.0.0\build\native\boost_locale-vc120.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_log_setup-vc120.1.62.0.0\build\native\boost_log_setup-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_log_setup-vc120.1.62.0.0\build\native\boost_log_setup-vc120.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_log-vc120.1.62.0.0\build\native\boost_log-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_log-vc120.1.62.0.0\build\native\boost_log-vc120.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_program_options-vc120.1.62.0.0\build\native\boost_program_options-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_program_options-vc120.1.62.0.0\build\native\boost_program_options-vc120.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_regex-vc120.1.62.0.0\build\native\boost_regex-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_regex-vc120.1.62.0.0\build\native\boost_regex-vc120.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_system-vc120.1.62.0.0\build\native\boost_system-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_system-vc120.1.62.0.0\build\native\boost_system-vc120.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_thread-vc120.1.62.0.0\build\native\boost_thread-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_thread-vc120.1.62.0.0\build\native\boost_thread-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost.1.57.0.0\build\native\boost.targets" Condition="Exists('$(NuGetPackageRoot)boost.1.57.0.0\build\native\boost.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_atomic-vc120.1.57.0.0\build\native\boost_atomic-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_atomic-vc120.1.57.0.0\build\native\boost_atomic-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_chrono-vc120.1.57.0.0\build\native\boost_chrono-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_chrono-vc120.1.57.0.0\build\native\boost_chrono-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_date_time-vc120.1.57.0.0\build\native\boost_date_time-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_date_time-vc120.1.57.0.0\build\native\boost_date_time-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_filesystem-vc120.1.57.0.0\build\native\boost_filesystem-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_filesystem-vc120.1.57.0.0\build\native\boost_filesystem-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_iostreams-vc120.1.57.0.0\build\native\boost_iostreams-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_iostreams-vc120.1.57.0.0\build\native\boost_iostreams-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_locale-vc120.1.57.0.0\build\native\boost_locale-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_locale-vc120.1.57.0.0\build\native\boost_locale-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_log_setup-vc120.1.57.0.0\build\native\boost_log_setup-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_log_setup-vc120.1.57.0.0\build\native\boost_log_setup-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_log-vc120.1.57.0.0\build\native\boost_log-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_log-vc120.1.57.0.0\build\native\boost_log-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_program_options-vc120.1.57.0.0\build\native\boost_program_options-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_program_options-vc120.1.57.0.0\build\native\boost_program_options-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_regex-vc120.1.57.0.0\build\native\boost_regex-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_regex-vc120.1.57.0.0\build\native\boost_regex-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_system-vc120.1.57.0.0\build\native\boost_system-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_system-vc120.1.57.0.0\build\native\boost_system-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_thread-vc120.1.57.0.0\build\native\boost_thread-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_thread-vc120.1.57.0.0\build\native\boost_thread-vc120.targets')" />
     <Import Project="$(NuGetPackageRoot)secp256k1_vc120.0.1.0.16\build\native\secp256k1_vc120.targets" Condition="Exists('$(NuGetPackageRoot)secp256k1_vc120.0.1.0.16\build\native\secp256k1_vc120.targets')" />
     <Import Project="$(NuGetPackageRoot)libzmq_vc120.4.2.30\build\native\libzmq_vc120.targets" Condition="Exists('$(NuGetPackageRoot)libzmq_vc120.4.2.30\build\native\libzmq_vc120.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_unit_test_framework-vc120.1.62.0.0\build\native\boost_unit_test_framework-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_unit_test_framework-vc120.1.62.0.0\build\native\boost_unit_test_framework-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_unit_test_framework-vc120.1.57.0.0\build\native\boost_unit_test_framework-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_unit_test_framework-vc120.1.57.0.0\build\native\boost_unit_test_framework-vc120.targets')" />
   </ImportGroup>
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
     <PropertyGroup>
       <ErrorText>This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
     </PropertyGroup>
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost.1.62.0.0\build\native\boost.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost.1.62.0.0\build\native\boost.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_atomic-vc120.1.62.0.0\build\native\boost_atomic-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_atomic-vc120.1.62.0.0\build\native\boost_atomic-vc120.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_chrono-vc120.1.62.0.0\build\native\boost_chrono-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_chrono-vc120.1.62.0.0\build\native\boost_chrono-vc120.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_date_time-vc120.1.62.0.0\build\native\boost_date_time-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_date_time-vc120.1.62.0.0\build\native\boost_date_time-vc120.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_filesystem-vc120.1.62.0.0\build\native\boost_filesystem-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_filesystem-vc120.1.62.0.0\build\native\boost_filesystem-vc120.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_iostreams-vc120.1.62.0.0\build\native\boost_iostreams-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_iostreams-vc120.1.62.0.0\build\native\boost_iostreams-vc120.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_locale-vc120.1.62.0.0\build\native\boost_locale-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_locale-vc120.1.62.0.0\build\native\boost_locale-vc120.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_log_setup-vc120.1.62.0.0\build\native\boost_log_setup-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_log_setup-vc120.1.62.0.0\build\native\boost_log_setup-vc120.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_log-vc120.1.62.0.0\build\native\boost_log-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_log-vc120.1.62.0.0\build\native\boost_log-vc120.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_program_options-vc120.1.62.0.0\build\native\boost_program_options-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_program_options-vc120.1.62.0.0\build\native\boost_program_options-vc120.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_regex-vc120.1.62.0.0\build\native\boost_regex-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_regex-vc120.1.62.0.0\build\native\boost_regex-vc120.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_system-vc120.1.62.0.0\build\native\boost_system-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_system-vc120.1.62.0.0\build\native\boost_system-vc120.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_thread-vc120.1.62.0.0\build\native\boost_thread-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_thread-vc120.1.62.0.0\build\native\boost_thread-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost.1.57.0.0\build\native\boost.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost.1.57.0.0\build\native\boost.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_atomic-vc120.1.57.0.0\build\native\boost_atomic-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_atomic-vc120.1.57.0.0\build\native\boost_atomic-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_chrono-vc120.1.57.0.0\build\native\boost_chrono-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_chrono-vc120.1.57.0.0\build\native\boost_chrono-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_date_time-vc120.1.57.0.0\build\native\boost_date_time-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_date_time-vc120.1.57.0.0\build\native\boost_date_time-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_filesystem-vc120.1.57.0.0\build\native\boost_filesystem-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_filesystem-vc120.1.57.0.0\build\native\boost_filesystem-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_iostreams-vc120.1.57.0.0\build\native\boost_iostreams-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_iostreams-vc120.1.57.0.0\build\native\boost_iostreams-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_locale-vc120.1.57.0.0\build\native\boost_locale-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_locale-vc120.1.57.0.0\build\native\boost_locale-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_log_setup-vc120.1.57.0.0\build\native\boost_log_setup-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_log_setup-vc120.1.57.0.0\build\native\boost_log_setup-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_log-vc120.1.57.0.0\build\native\boost_log-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_log-vc120.1.57.0.0\build\native\boost_log-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_program_options-vc120.1.57.0.0\build\native\boost_program_options-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_program_options-vc120.1.57.0.0\build\native\boost_program_options-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_regex-vc120.1.57.0.0\build\native\boost_regex-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_regex-vc120.1.57.0.0\build\native\boost_regex-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_system-vc120.1.57.0.0\build\native\boost_system-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_system-vc120.1.57.0.0\build\native\boost_system-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_thread-vc120.1.57.0.0\build\native\boost_thread-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_thread-vc120.1.57.0.0\build\native\boost_thread-vc120.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)secp256k1_vc120.0.1.0.16\build\native\secp256k1_vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)secp256k1_vc120.0.1.0.16\build\native\secp256k1_vc120.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)libzmq_vc120.4.2.30\build\native\libzmq_vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)libzmq_vc120.4.2.30\build\native\libzmq_vc120.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_unit_test_framework-vc120.1.62.0.0\build\native\boost_unit_test_framework-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_unit_test_framework-vc120.1.62.0.0\build\native\boost_unit_test_framework-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_unit_test_framework-vc120.1.57.0.0\build\native\boost_unit_test_framework-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_unit_test_framework-vc120.1.57.0.0\build\native\boost_unit_test_framework-vc120.targets'))" />
   </Target>
   <ItemGroup>
     <ProjectReference Include="..\libbitcoin-client\libbitcoin-client.vcxproj">
diff --git a/builds/msvc/vs2013/libbitcoin-client-test/packages.config b/builds/msvc/vs2013/libbitcoin-client-test/packages.config
index 4ae6ae5..0654966 100644
--- a/builds/msvc/vs2013/libbitcoin-client-test/packages.config
+++ b/builds/msvc/vs2013/libbitcoin-client-test/packages.config
@@ -6,20 +6,20 @@
  |
  -->
 <packages>
-  <package id="boost" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_atomic-vc120" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_chrono-vc120" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_date_time-vc120" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_filesystem-vc120" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_iostreams-vc120" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_locale-vc120" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_log_setup-vc120" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_log-vc120" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_program_options-vc120" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_regex-vc120" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_system-vc120" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_thread-vc120" version="1.62.0.0" targetFramework="Native" />
+  <package id="boost" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_atomic-vc120" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_chrono-vc120" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_date_time-vc120" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_filesystem-vc120" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_iostreams-vc120" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_locale-vc120" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_log_setup-vc120" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_log-vc120" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_program_options-vc120" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_regex-vc120" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_system-vc120" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_thread-vc120" version="1.57.0.0" targetFramework="Native" />
   <package id="secp256k1_vc120" version="0.1.0.16" targetFramework="Native" />
   <package id="libzmq_vc120" version="4.2.30" targetFramework="Native" />
-  <package id="boost_unit_test_framework-vc120" version="1.62.0.0" targetFramework="Native" />
+  <package id="boost_unit_test_framework-vc120" version="1.57.0.0" targetFramework="Native" />
 </packages>
diff --git a/builds/msvc/vs2013/libbitcoin-client/libbitcoin-client.vcxproj b/builds/msvc/vs2013/libbitcoin-client/libbitcoin-client.vcxproj
index 7c6d426..354f61e 100644
--- a/builds/msvc/vs2013/libbitcoin-client/libbitcoin-client.vcxproj
+++ b/builds/msvc/vs2013/libbitcoin-client/libbitcoin-client.vcxproj
@@ -96,19 +96,19 @@
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets" />
   <ImportGroup Label="ExtensionSettings">
-    <Import Project="$(NuGetPackageRoot)boost.1.62.0.0\build\native\boost.targets" Condition="Exists('$(NuGetPackageRoot)boost.1.62.0.0\build\native\boost.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_atomic-vc120.1.62.0.0\build\native\boost_atomic-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_atomic-vc120.1.62.0.0\build\native\boost_atomic-vc120.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_chrono-vc120.1.62.0.0\build\native\boost_chrono-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_chrono-vc120.1.62.0.0\build\native\boost_chrono-vc120.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_date_time-vc120.1.62.0.0\build\native\boost_date_time-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_date_time-vc120.1.62.0.0\build\native\boost_date_time-vc120.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_filesystem-vc120.1.62.0.0\build\native\boost_filesystem-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_filesystem-vc120.1.62.0.0\build\native\boost_filesystem-vc120.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_iostreams-vc120.1.62.0.0\build\native\boost_iostreams-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_iostreams-vc120.1.62.0.0\build\native\boost_iostreams-vc120.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_locale-vc120.1.62.0.0\build\native\boost_locale-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_locale-vc120.1.62.0.0\build\native\boost_locale-vc120.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_log_setup-vc120.1.62.0.0\build\native\boost_log_setup-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_log_setup-vc120.1.62.0.0\build\native\boost_log_setup-vc120.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_log-vc120.1.62.0.0\build\native\boost_log-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_log-vc120.1.62.0.0\build\native\boost_log-vc120.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_program_options-vc120.1.62.0.0\build\native\boost_program_options-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_program_options-vc120.1.62.0.0\build\native\boost_program_options-vc120.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_regex-vc120.1.62.0.0\build\native\boost_regex-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_regex-vc120.1.62.0.0\build\native\boost_regex-vc120.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_system-vc120.1.62.0.0\build\native\boost_system-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_system-vc120.1.62.0.0\build\native\boost_system-vc120.targets')" />
-    <Import Project="$(NuGetPackageRoot)boost_thread-vc120.1.62.0.0\build\native\boost_thread-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_thread-vc120.1.62.0.0\build\native\boost_thread-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost.1.57.0.0\build\native\boost.targets" Condition="Exists('$(NuGetPackageRoot)boost.1.57.0.0\build\native\boost.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_atomic-vc120.1.57.0.0\build\native\boost_atomic-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_atomic-vc120.1.57.0.0\build\native\boost_atomic-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_chrono-vc120.1.57.0.0\build\native\boost_chrono-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_chrono-vc120.1.57.0.0\build\native\boost_chrono-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_date_time-vc120.1.57.0.0\build\native\boost_date_time-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_date_time-vc120.1.57.0.0\build\native\boost_date_time-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_filesystem-vc120.1.57.0.0\build\native\boost_filesystem-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_filesystem-vc120.1.57.0.0\build\native\boost_filesystem-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_iostreams-vc120.1.57.0.0\build\native\boost_iostreams-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_iostreams-vc120.1.57.0.0\build\native\boost_iostreams-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_locale-vc120.1.57.0.0\build\native\boost_locale-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_locale-vc120.1.57.0.0\build\native\boost_locale-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_log_setup-vc120.1.57.0.0\build\native\boost_log_setup-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_log_setup-vc120.1.57.0.0\build\native\boost_log_setup-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_log-vc120.1.57.0.0\build\native\boost_log-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_log-vc120.1.57.0.0\build\native\boost_log-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_program_options-vc120.1.57.0.0\build\native\boost_program_options-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_program_options-vc120.1.57.0.0\build\native\boost_program_options-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_regex-vc120.1.57.0.0\build\native\boost_regex-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_regex-vc120.1.57.0.0\build\native\boost_regex-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_system-vc120.1.57.0.0\build\native\boost_system-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_system-vc120.1.57.0.0\build\native\boost_system-vc120.targets')" />
+    <Import Project="$(NuGetPackageRoot)boost_thread-vc120.1.57.0.0\build\native\boost_thread-vc120.targets" Condition="Exists('$(NuGetPackageRoot)boost_thread-vc120.1.57.0.0\build\native\boost_thread-vc120.targets')" />
     <Import Project="$(NuGetPackageRoot)secp256k1_vc120.0.1.0.16\build\native\secp256k1_vc120.targets" Condition="Exists('$(NuGetPackageRoot)secp256k1_vc120.0.1.0.16\build\native\secp256k1_vc120.targets')" />
     <Import Project="$(NuGetPackageRoot)libzmq_vc120.4.2.30\build\native\libzmq_vc120.targets" Condition="Exists('$(NuGetPackageRoot)libzmq_vc120.4.2.30\build\native\libzmq_vc120.targets')" />
   </ImportGroup>
@@ -116,19 +116,19 @@
     <PropertyGroup>
       <ErrorText>This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
     </PropertyGroup>
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost.1.62.0.0\build\native\boost.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost.1.62.0.0\build\native\boost.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_atomic-vc120.1.62.0.0\build\native\boost_atomic-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_atomic-vc120.1.62.0.0\build\native\boost_atomic-vc120.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_chrono-vc120.1.62.0.0\build\native\boost_chrono-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_chrono-vc120.1.62.0.0\build\native\boost_chrono-vc120.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_date_time-vc120.1.62.0.0\build\native\boost_date_time-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_date_time-vc120.1.62.0.0\build\native\boost_date_time-vc120.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_filesystem-vc120.1.62.0.0\build\native\boost_filesystem-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_filesystem-vc120.1.62.0.0\build\native\boost_filesystem-vc120.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_iostreams-vc120.1.62.0.0\build\native\boost_iostreams-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_iostreams-vc120.1.62.0.0\build\native\boost_iostreams-vc120.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_locale-vc120.1.62.0.0\build\native\boost_locale-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_locale-vc120.1.62.0.0\build\native\boost_locale-vc120.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_log_setup-vc120.1.62.0.0\build\native\boost_log_setup-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_log_setup-vc120.1.62.0.0\build\native\boost_log_setup-vc120.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_log-vc120.1.62.0.0\build\native\boost_log-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_log-vc120.1.62.0.0\build\native\boost_log-vc120.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_program_options-vc120.1.62.0.0\build\native\boost_program_options-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_program_options-vc120.1.62.0.0\build\native\boost_program_options-vc120.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_regex-vc120.1.62.0.0\build\native\boost_regex-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_regex-vc120.1.62.0.0\build\native\boost_regex-vc120.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_system-vc120.1.62.0.0\build\native\boost_system-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_system-vc120.1.62.0.0\build\native\boost_system-vc120.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)boost_thread-vc120.1.62.0.0\build\native\boost_thread-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_thread-vc120.1.62.0.0\build\native\boost_thread-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost.1.57.0.0\build\native\boost.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost.1.57.0.0\build\native\boost.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_atomic-vc120.1.57.0.0\build\native\boost_atomic-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_atomic-vc120.1.57.0.0\build\native\boost_atomic-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_chrono-vc120.1.57.0.0\build\native\boost_chrono-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_chrono-vc120.1.57.0.0\build\native\boost_chrono-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_date_time-vc120.1.57.0.0\build\native\boost_date_time-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_date_time-vc120.1.57.0.0\build\native\boost_date_time-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_filesystem-vc120.1.57.0.0\build\native\boost_filesystem-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_filesystem-vc120.1.57.0.0\build\native\boost_filesystem-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_iostreams-vc120.1.57.0.0\build\native\boost_iostreams-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_iostreams-vc120.1.57.0.0\build\native\boost_iostreams-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_locale-vc120.1.57.0.0\build\native\boost_locale-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_locale-vc120.1.57.0.0\build\native\boost_locale-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_log_setup-vc120.1.57.0.0\build\native\boost_log_setup-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_log_setup-vc120.1.57.0.0\build\native\boost_log_setup-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_log-vc120.1.57.0.0\build\native\boost_log-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_log-vc120.1.57.0.0\build\native\boost_log-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_program_options-vc120.1.57.0.0\build\native\boost_program_options-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_program_options-vc120.1.57.0.0\build\native\boost_program_options-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_regex-vc120.1.57.0.0\build\native\boost_regex-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_regex-vc120.1.57.0.0\build\native\boost_regex-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_system-vc120.1.57.0.0\build\native\boost_system-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_system-vc120.1.57.0.0\build\native\boost_system-vc120.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)boost_thread-vc120.1.57.0.0\build\native\boost_thread-vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_thread-vc120.1.57.0.0\build\native\boost_thread-vc120.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)secp256k1_vc120.0.1.0.16\build\native\secp256k1_vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)secp256k1_vc120.0.1.0.16\build\native\secp256k1_vc120.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)libzmq_vc120.4.2.30\build\native\libzmq_vc120.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)libzmq_vc120.4.2.30\build\native\libzmq_vc120.targets'))" />
   </Target>
diff --git a/builds/msvc/vs2013/libbitcoin-client/packages.config b/builds/msvc/vs2013/libbitcoin-client/packages.config
index 9bc5a0f..570c45d 100644
--- a/builds/msvc/vs2013/libbitcoin-client/packages.config
+++ b/builds/msvc/vs2013/libbitcoin-client/packages.config
@@ -6,19 +6,19 @@
  |
  -->
 <packages>
-  <package id="boost" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_atomic-vc120" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_chrono-vc120" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_date_time-vc120" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_filesystem-vc120" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_iostreams-vc120" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_locale-vc120" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_log_setup-vc120" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_log-vc120" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_program_options-vc120" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_regex-vc120" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_system-vc120" version="1.62.0.0" targetFramework="Native" />
-  <package id="boost_thread-vc120" version="1.62.0.0" targetFramework="Native" />
+  <package id="boost" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_atomic-vc120" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_chrono-vc120" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_date_time-vc120" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_filesystem-vc120" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_iostreams-vc120" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_locale-vc120" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_log_setup-vc120" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_log-vc120" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_program_options-vc120" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_regex-vc120" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_system-vc120" version="1.57.0.0" targetFramework="Native" />
+  <package id="boost_thread-vc120" version="1.57.0.0" targetFramework="Native" />
   <package id="secp256k1_vc120" version="0.1.0.16" targetFramework="Native" />
   <package id="libzmq_vc120" version="4.2.30" targetFramework="Native" />
 </packages>