diff --git a/.github/actions/client-release/action.yml b/.github/actions/client-release/action.yml
index c6084d6e1..6a07bdc41 100644
--- a/.github/actions/client-release/action.yml
+++ b/.github/actions/client-release/action.yml
@@ -74,7 +74,7 @@ runs:
       if: runner.os == 'Windows'
       shell: bash
       env:
-        OPENSSL_ROOT_DIR: ${{ env.OPENSSL_ROOT_DIR }}
+        OPENSSL_ROOT_DIR: 'C:\Program Files\OpenSSL'
         BOOST_LIBRARY_DIR: 'C:\local\boost_1_81_0\lib64-msvc-14.3'
         BOOST_LIBRARYDIR: 'C:\local\boost_1_81_0\lib64-msvc-14.3'
         BOOST_ROOT: ${{ steps.install-boost.outputs.BOOST_ROOT }}
diff --git a/.github/workflows/client.yml b/.github/workflows/client.yml
index dcf8bbf15..fcbea06d5 100644
--- a/.github/workflows/client.yml
+++ b/.github/workflows/client.yml
@@ -59,7 +59,7 @@ jobs:
       - uses: ilammy/msvc-dev-cmd@v1
       - uses: ./.github/actions/ci
         env:
-          OPENSSL_ROOT_DIR: ${{ env.OPENSSL_ROOT_DIR }}
+          OPENSSL_ROOT_DIR: 'C:\Program Files\OpenSSL'
           BOOST_LIBRARY_DIR: 'C:\local\boost_1_81_0\lib64-msvc-14.3'
           BOOST_LIBRARYDIR: 'C:\local\boost_1_81_0\lib64-msvc-14.3'
         with:
diff --git a/libs/common/include/launchdarkly/attributes_builder.hpp b/libs/common/include/launchdarkly/attributes_builder.hpp
index 3f959c168..bc0dc82c9 100644
--- a/libs/common/include/launchdarkly/attributes_builder.hpp
+++ b/libs/common/include/launchdarkly/attributes_builder.hpp
@@ -63,7 +63,9 @@ class AttributesBuilder final {
     AttributesBuilder& operator=(AttributesBuilder const&) = delete;
     AttributesBuilder& operator=(AttributesBuilder&&) = delete;
 
-    AttributesBuilder(AttributesBuilder&& builder) noexcept = default;
+    // This cannot be noexcept because of:
+    // https://developercommunity.visualstudio.com/t/bug-in-stdmapstdpair-implementation-with-move-only/840554
+    AttributesBuilder(AttributesBuilder&& builder) = default;
     ~AttributesBuilder() = default;
 
     /**
diff --git a/libs/common/include/launchdarkly/persistence/persistence.hpp b/libs/common/include/launchdarkly/persistence/persistence.hpp
index 0cb027eff..6cda9802c 100644
--- a/libs/common/include/launchdarkly/persistence/persistence.hpp
+++ b/libs/common/include/launchdarkly/persistence/persistence.hpp
@@ -1,5 +1,7 @@
 #pragma once
 
+#include <string>
+
 /**
  * Interface for a data store that holds feature flag data and other SDK
  * properties in a serialized form.
diff --git a/libs/common/include/launchdarkly/value.hpp b/libs/common/include/launchdarkly/value.hpp
index b176d2c4e..9d3a82019 100644
--- a/libs/common/include/launchdarkly/value.hpp
+++ b/libs/common/include/launchdarkly/value.hpp
@@ -413,9 +413,11 @@ class Value final {
     enum Type type_;
 
     // Empty constants used when accessing the wrong type.
-    inline static const std::string empty_string_;
-    inline static const Array empty_vector_;
-    inline static const Object empty_map_;
+    // These are not inline static const because of this bug:
+    // https://developercommunity.visualstudio.com/t/inline-static-destructors-are-called-multiple-time/1157794
+    static const std::string empty_string_;
+    static const Array empty_vector_;
+    static const Object empty_map_;
     static const Value null_value_;
 };
 
diff --git a/libs/common/src/config/app_info_builder.cpp b/libs/common/src/config/app_info_builder.cpp
index 8cd6c737d..df83d2749 100644
--- a/libs/common/src/config/app_info_builder.cpp
+++ b/libs/common/src/config/app_info_builder.cpp
@@ -21,7 +21,13 @@ tl::expected<std::string, Error> AppInfoBuilder::Tag::Build() const {
 }
 
 bool ValidChar(char c) {
-    return std::isalnum(c) != 0 || c == '-' || c == '.' || c == '_';
+    if(c > 0 && c < 255) {
+        // The MSVC implementation of isalnum will assert if the number it outside
+        // its lookup table.
+        // iswalnum would not, but is less restrictive than desired.
+        return std::isalnum(c) != 0 || c == '-' || c == '.' || c == '_';
+    }
+    return false;
 }
 
 std::optional<Error> IsValidTag(std::string const& key,
diff --git a/libs/common/src/value.cpp b/libs/common/src/value.cpp
index bc28777fa..1db2b19a9 100644
--- a/libs/common/src/value.cpp
+++ b/libs/common/src/value.cpp
@@ -7,6 +7,9 @@
 
 namespace launchdarkly {
 
+const std::string Value::empty_string_;
+const Value::Array Value::empty_vector_;
+const Value::Object Value::empty_map_;
 const Value Value::null_value_;
 
 Value::Value() : type_(Value::Type::kNull), storage_{0.0} {}