If you are searching for a Windows zpaqfranz GUI you can try my freeware utility (PAKKA)

Please be careful with closed-source executable, download ONLY from trusted site!

Mine is trivially www.francocorbelli.it. The add-portion is under heavy development; the "extract" is (about) mature

Please note: PAKKA is a Windows 32 EXE packed with mpress, containing both 32 and 64 bit code. Therefore it is possible that some antiviruses report false positives. It is actually the database backup portion of one of my ERP software, that's why I can't make an opensource version of it, it means rewriting from scratch