Check if registry file exists before copying file over (#143)

microsoft · May 24, 2019 · 2ccf90c · 2ccf90c
1 parent 1c51762
commit 2ccf90c
Showing 1 changed file with 6 additions and 2 deletions.
diff --git a/preview/MsixCore/MsixCoreInstaller/PrepareDevirtualizedRegistry.cpp b/preview/MsixCore/MsixCoreInstaller/PrepareDevirtualizedRegistry.cpp
@@ -25,9 +25,13 @@ HRESULT PrepareDevirtualizedRegistry::ExtractRegistry()
 {
     std::wstring registryFilePath = m_msixRequest->GetPackageDirectoryPath() + registryDatFile;
     std::wstring registryFileCopyPath = m_msixRequest->GetPackageDirectoryPath() + registryDatFileCopy;
-    if (!CopyFile(registryFilePath.c_str(), registryFileCopyPath.c_str(), false))
+
+    if (std::experimental::filesystem::exists(registryFilePath))
     {
-        return HRESULT_FROM_WIN32(GetLastError());
+        if (!CopyFile(registryFilePath.c_str(), registryFileCopyPath.c_str(), false))
+        {
+            return HRESULT_FROM_WIN32(GetLastError());
+        }
     }
 
     std::shared_ptr<RegistryDevirtualizer> registryDevirtualizer;