VisualSVN - VisualSVN - Subversion plugin for Visual Studio
Git for Windows - We bring the awesome Git SCM to Windows
ZenTao - ZenTao is an open source project management tool, supporting Scrum.
CVS (Concurrent Versions System) - CVS is a centralized version control system, an important component of Source Configuration...
Mercurial SCM - Mercurial is a free, distributed source control management tool.
Bazaar - Bazaar is a tool for helping people collaborate.