I need help getting Primetime Podcast Receiver to start

Everytime I try to start Primetime Podcast Receiver I get an error message informing me that c:\Microsoft.NET\Framework\v2.0.50727\mscorwks.dll could not be loaded.

I’ve run sfc /scannow but that didn’t help. I have .Net Framework 2.0 and also 1.1 on my computer…could there be a conflict there? This is the first time I’ve run into a problem with .NET Framework, so I’m not sure what to do. I’ve also verified that the mscorwks.dll file is in place.

Any ideas about this?