It does, and so will Windows 7, but it is part of whatever Windows Explorer is now called and I confess that I don't know how to associate it with zips. However if you haven't got an archiver I recommend 7-Zip. As well being free it can unpack more formats than WinZip. It runs fine on Vista so should be OK on Windows 7 as well.I think that what you suggest is the sollution. Does vista have built in zip stuff and if so do you know the name of the program?