Short answer: I use Fossil on Windows for source control for multiple projects ranging from a handful of files to hundreds of megabytes of sources: http://www.f

Short answer: I use Fossil on Windows for source control for multiple projects ranging from a handful of files to hundreds of megabytes of sources: http://www.fossil-scm.org/ http://www.fossil-scm.org/ Long answer: It depends on what you're going to do with it. Are you looking for yourself, for personal work? Are you looking for multiple team members? Distributed? Centralized with no administrator? Centralized with an IT and administration team? Does the server have to be Windows? Does it have to support other OSes later? Does it have to integrate with a particular IDE on Windows? What about a hosted solution? Companies with Windows development environments which I've worked at have used Subversion (and Trac) and Perforce, and I've heard of people using Microsoft SourceSafe (apparently deprecated in favor of Visual Studio Application Lifecycle Management) and SourceGear Vault. Bazaar (bzr) and Mercurial (hg) also should have decent Windows support.