Error6 while trying to use sublime text to msbuild - msbuild

Question

I'm trying to use msbuild with my sublime project. I created the build file suggested here and the following is my project file
{
"folders":
[
{
"path": "/W/MyOrg/MyApp",
"folder_exclude_patterns": ["_ReSharper.*", "bin", "obj"]
}
]
}
I select the msbuild40 build system and hit Build and get the output:
[Error 6] The handle is invalid
[Finished]
I'm not even sure if this is a python or an msbuild error. Which is it, how can I fix it, and whats a good way to troubleshoot this sort of stuff in the future?
Update
I tried updating my project to the following and using that build and still no dice
{
"folders":
[
{
"path": "/W/MyOrg/MyApp",
"folder_exclude_patterns": ["_ReSharper.*", "bin", "obj"]
}
],
"build_systems":
[
{
"name": "msbuild",
"cmd": ["c:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319\\MSBuild.exe", "w:\\MyOrg\\MyApp\\MyApp.sln"]
}
]
}

Answer 1

Turns out that this happens whenever you start sublime from command line ( I was starting it via a powershell alias).
You can fix this by using a batch file and the START command. I created sublime_text.bat:
START "Sublime Text 2" "C:\Program Files\Sublime Text 2\sublime_text.exe" %*
and set my powershell alias to that bat file. Now everything works.