git-annex has recently been ported to Windows!

• First, install git
• Then, install git-annex

This port is in an early state. While it works well enough to use git-annex, many things will not work. See windows support for current status. Note especially that git-annex always uses direct mode on Windows.

autobuilds

A daily build is also available, thanks to Yury V. Zaytsev and NEST.

• download (build logs)

building it yourself

To build git-annex from source on Windows, you need to install the Haskell Platform, Mingw, and Cygwin. Use Cygwin to install gcc, rsync, git, wget, ssh, and gpg.

There is a shell script standalone/windows/build.sh that can be used to build git-annex. Note that this shell script cannot be run in Cygwin; run it with the Mingw sh.