WinCvs is somehow experimental and is provided without support or great documentation. - patch.exe from the regular cvs distribution will fail to patch very often : it has no impact since cvs will send the entire file instead : I've not identified the problem but patch.exe 2.5 seems to work better so I added it to the WinCvs distribution. - when using -z9, it was freezing. I did fix it temporaly (see zlib.c). - Not all the options are avalaible thru the menus, so use the command line instead. - Still a problem for the multi-files picking : I think I do the good thing and the browser still cut the line after xxx files. Alexandre Parenteau