いますぐどうこう、というものは なさげ
CvsIn
CvsIn is an attempt to optimize working patterns when using ConcurentVersions System together with Developer Studio (DevStudio -development tool) and WinCvs (as a Browser to perform Version Controltasks).
CVSSCC
VisualSourceSafe の API (Microsoft Common Source Code Control (SCC)) の皮を使って CVS をモゲ?
To repeat: CVSSCC in it's present state is not useful!