2 files changed, 5 insertions, 5 deletions

diff --git a/appveyor.cmd b/appveyor.cmd
index a39fa567..63bf9301 100644
--- a/appveyor.cmd
+++ b/appveyor.cmd
@@ -1,13 +1,13 @@
 @setlocal
 @pushd %~dp0
 
-nuget restore
+nuget restore || exit /b
 
-msbuild -p:Configuration=Release .\src\test\WixToolsetTest.Core.Native\WixToolsetTest.Core.Native.csproj
+msbuild -p:Configuration=Release .\src\test\WixToolsetTest.Core.Native\WixToolsetTest.Core.Native.csproj || exit /b
 
-msbuild -t:Pack -p:Configuration=Release .\src\WixToolset.Core.Native\WixToolset.Core.Native.csproj
+msbuild -t:Pack -p:Configuration=Release .\src\WixToolset.Core.Native\WixToolset.Core.Native.csproj || exit /b
 
-msbuild -t:Pack -p:Configuration=Release .\src\wixnative\wixnative.vcxproj
+msbuild -t:Pack -p:Configuration=Release .\src\wixnative\wixnative.vcxproj || exit /b
 
 @popd
 @endlocal
\ No newline at end of file
diff --git a/src/WixToolset.Core.Native/WixNativeExe.cs b/src/WixToolset.Core.Native/WixNativeExe.cs
index 325fa18f..eaa2b2e0 100644
--- a/src/WixToolset.Core.Native/WixNativeExe.cs
+++ b/src/WixToolset.Core.Native/WixNativeExe.cs
@@ -89,7 +89,7 @@ namespace WixToolset.Core.Native
                 if (!found && AppContext.GetData("NATIVE_DLL_SEARCH_DIRECTORIES") is string searchDirectoriesString)
                 {
                     possiblePaths = searchDirectoriesString;
-                    var separatorChar = RuntimeInformation.IsOSPlatform(OSPlatform.Windows) ? ';' : ':';
+                    var separatorChar = Path.PathSeparator;
                     var searchDirectories = searchDirectoriesString?.Split(separatorChar);
                     foreach (var directoryPath in searchDirectories)
                     {