If you can tell me a name of a free zip/rar program that
1) supports zip/rar creation from the command line, AND
2) supports compression of entire directory stuctures with relative paths.
and we can start to distribute these our products in zip/rar archives.
So far I only know one program that can do both, and that is WinZip. Which must be some of the most expensive software there is (if you take account what you get with the money), so we won't be licensing it only for this.