In Hudson's configuration under MSBuild, I created an MSBuilder installation
named ".NET 3.5" and set the path to
"C:\WINDOWS\Microsoft.NET\Framework\v3.5\MSBuild.exe" (without the quotes).

Then, in my job, I set msbuild to use ".NET 3.5", and then told the job to build.

Here's the error at the end:

At revision 562
no revision recorded for
http://repo.molecular.com/svn/tcwredesign/trunk/platform/tcw.com/visual%20studio/TCW
in the previous build
FATAL: C:\WINDOWS\Microsoft.NET\Framework\v3.5\MSBuild.exe doesn't exist
Finished: FAILURE

I tried surrounding the path with quotation marks in Hudson's configuration, but
the error stayed the same.

My hudson manager server runs on Linux, and the slave is Windows. This job is
tied to that Windows slave, and I have checked many times to make sure that path
is valid.