I'm running Visual Studio 2005 Pro, and have been getting the following error recently:

```
Error 1 Error result -1 returned from 'C:\Program Files\Microsoft Visual Studio 8\VC\bin\cl.exe'.

```

Reading some of the other posts around here, I've learned that cl.exe is native to VS 2008. I do have an install of 2008 Express (but C# only), and recently I uninstalled VS 2010 Express. Could there be some sort of leftover compatibility issue going on here for me?

**edit**
Ok, let's go with it isn't a compatibility issue. Any thoughts on how to fix the error?