diff --git a/build/Build.bat b/build/Build.bat
index 0163c1c83b..f17fac9a9b 100644
--- a/build/Build.bat
+++ b/build/Build.bat
@@ -1,5 +1,5 @@
 @echo off
 
-%WINDIR%\Microsoft.NET\Framework\v4.0.30319\msbuild build.csproj /m /p:BuildConfiguration=Debug
+%WINDIR%\Microsoft.NET\Framework\v4.0.30319\msbuild build.csproj /m /t:Build /p:BuildConfiguration=Debug
 
 pause
\ No newline at end of file
diff --git a/build/BuildSilverlight2.bat b/build/BuildSilverlight2.bat
new file mode 100644
index 0000000000..f875cf2e1b
--- /dev/null
+++ b/build/BuildSilverlight2.bat
@@ -0,0 +1,5 @@
+@echo off
+
+%WINDIR%\Microsoft.NET\Framework\v4.0.30319\msbuild build.csproj /m /t:Build /p:BuildConfiguration=Debug_Silverlight2
+
+pause
\ No newline at end of file
diff --git a/build/build.csproj b/build/build.csproj
index f3223d71eb..d55efad7c6 100644
--- a/build/build.csproj
+++ b/build/build.csproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
 
 	<PropertyGroup>
 		<ProjectName>Protocol Buffers</ProjectName>