Unable to generate a temporary class (result=1) with wcf

I am getting this error from my wcf serv开发者_StackOverflow中文版ice

System.Exception: Unable to generate a temporary class (result=1). error CS2001: Source file 'C:\WINNT\TEMP\igqfpel9.0.cs' could not be found error CS2008: No inputs specified

Currently the identity that the service runs as does not have access to C:\WINNT\TEMP, my question is how do I change the location .Net 3.5 SP1 sticks temporary classes. I would like to have it put everything in E:\Temp. Is this possible?

Thanks,

You can try setting the TEMP environment variable:

        System.Environment.SetEnvironmentVariable("TEMP", @"E:\Temp");