Back2zip uses the industry's most powerful ZIP and ZIP-64 technologies to constantly monitor your documents and make sure that they are always properly backed up to ZIP files. Back2zip can work away completely in the background without interrupting your work. It just takes just two minutes to download and set up - then it works away quietly and automatically protecting your documents so you can enjoy total peace of mind. Back2zip is completely free with no spyware or shareware. It does not install any DLLs or other software on your computer. It's really freeware and does not nag you to purchase or buy anything.