diff --git a/.gitignore b/.gitignore
index 8bc217058d..aba9c594d7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,6 +13,7 @@ PublishProfiles/
 _ReSharper.*
 nuget.exe
 *net45.csproj
+*net451.csproj
 *k10.csproj
 *.psess
 *.vsp
diff --git a/build.cmd b/build.cmd
index 7045ee1f84..2c32132fa3 100644
--- a/build.cmd
+++ b/build.cmd
@@ -18,6 +18,9 @@ copy %CACHED_NUGET% .nuget\nuget.exe > nul
 IF EXIST packages\KoreBuild goto run
 .nuget\NuGet.exe install KoreBuild -ExcludeVersion -o packages -nocache -pre
 .nuget\NuGet.exe install Sake -version 0.2 -o packages -ExcludeVersion
+CALL packages\KoreBuild\build\kvm install -svr50 -x86
+CALL packages\KoreBuild\build\kvm install -svrc50 -x86
 
 :run
+CALL packages\KoreBuild\build\kvm use default -svr50 -x86
 packages\Sake\tools\Sake.exe -I packages\KoreBuild\build -f makefile.shade %*