Do you have Microsoft Visual Studio?
It includes a VCS named Visual Sourcesafe.
Works great for SMALL and LARGE projects.
Evenso for common used code,libs ...

All code checked in will be protected (read only) on your PC to prevent any change.

WATCH OUT when writing your coding directory to a CD! ALL FILES WILL BECOME UNPROTECTED! This is a problem with the CD-BRUNINGS software itself, not from the VCS program.


Best Regards.

PS. : Try setting up the Sourcesafe onto a server! This makes backup more easy to perform.