If you are referring to C/C++ related to .NET:
microsoft.public.dotnet.languages.vc
microsoft.public.dotnet.languages.vc.libraries
Otherwise:
microsoft.public.vc.*
I don´t think there is a group for C/C++ not related to Visual Studio since
these are Microsoft groups.

Signature
Carlos J. Quintero (Visual Developer - .NET MVP)
FAQs, Knowledge Base, Files, Docs, Articles, Utilities, etc. for .NET
addins:
http://groups.yahoo.com/group/vsnetaddin/ (free join)
> I'm looking for a good newsgroup or web forum where I can ask programming
> questions about C/C++ in general as well as ones specific to VS.
[quoted text clipped - 5 lines]
>
> - Ben