how to compile a CUDA sample project in EmuDebug mode without a GPU?

I met some problem. I can run the projects from the SDK and have the administrator permission. But fail to build when I use VC++ 2005 express, with the error
nvcc fatal : Could not open input file C:\DOCUME~1\LOCALS~1\Temp/tmpxft_000007fc_00000000-1
Does anyone have some idea on how to address this problem? Thanks!