Testversion of rdiff-backup for Windows available - testers needed
it was a long and bumpy run, but we've got a Windows version of
rdiff-backup available for you to grab and test at 
As I write in the comments, the binary has been barely tested (I got a
bit sick of working under Windows to be honest) and I would be more than
happy if someone else could take over the detailed testing and report
specific issues under  (Merge Requests are even more welcome).
For the even less faint of heart, you'll find under tools/windows in the
Git repo instructions and tools on how to build and debug rdiff-backup
under Windows. It's based on usage of Ansible but can easily be adapted
to other means of doing.