Where can I find the Prefast download for Visual Studio 2008? I can not find it through Google or the MSDN website.
PREfast is included with the Windows Driver Kit (WDK). Start here to learn how to get WDK:
I'm not sure how easy it is to integrate into Visual Studio. Visual Studio 2008 includes a C / C ++ analysis function (option / analysis) that is somewhat similar to PREfast (but I'm not sure what it looks like - many articles seem to point to the same thing).