diff --git a/debug_and_release_in_parallel.xml b/debug_and_release_in_parallel.xml
new file mode 100644
index 0000000000..2997ccf5ee
--- /dev/null
+++ b/debug_and_release_in_parallel.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Solution Include="*.sln">
+      <Properties>Configuration=Debug;Platform=x64</Properties>
+    </Solution>
+    <Solution Include="*.sln">
+      <Properties>Configuration=Release;Platform=x64</Properties>
+    </Solution>
+  </ItemGroup>
+  <Target Name="Build">
+    <MSBuild Projects="@(Solution)" BuildInParallel="true" Targets="Build" />
+  </Target>
+  <Target Name="Clean">
+    <MSBuild Projects="@(Solution)" BuildInParallel="true" Targets="Clean" />
+  </Target>
+  <Target Name="Rebuild">
+    <MSBuild Projects="@(Solution)" BuildInParallel="true" Targets="Rebuild" />
+  </Target>
+</Project>
+
diff --git a/find_msbuild.ps1 b/find_msbuild.ps1
index 920c277f77..eaa20572d0 100644
--- a/find_msbuild.ps1
+++ b/find_msbuild.ps1
@@ -1,4 +1,4 @@
-$version = "15.9.4"
+$version = "15.9.3"
 $preview = "1"
 
 $vswhere = "${Env:ProgramFiles(x86)}\Microsoft Visual Studio\Installer\vswhere.exe";