Thats not exactly what I meant, I think. This Kerberos support comes from extra functions in secur32.dll right? The tests then will notice that there is no Kerberos support and not run Kerberos tests. Am I mistaken?
You are mistaken. The same functions exist in Windows NT4 (they're in security.dll rather than secur32.dll, but the exports are the same.) You ask for a provider by name, and the Kerberos provider exists in Windows 2000 and up, but not in NT4.
That doesn't mean that the tests couldn't use skip if Kerberos isn't available. --Juan