CVS does not include built-in support for the SCC API. These are the projects that I know of that you can use to add support for it:
- TamTam CVS SCC is a commercial ($15) product.
- PushOk CVS SCC Proxy is a commercial ($24) product.
- Jalindi Igloo is an free product, but it's incomplete and hasn't been updated since September, 2001.
- Zeus SCC-SVS is a free download that allows the Zeus programmer's editor to use CVS through the SCC API. We haven't tried it and don't know if it's generic enough to support BC's usage.