Now, I know Vista has support for compressed folders but there are (quite a few) times when you need something more powerful and flexible. I was a big fan of PowerArchiver for a while but it got a bit bloated for me and well it costs $19.95 and I'm cheap :-). Anyway the one utility I tried out which really fulfilled my needs (quick, cheap and flexible) was 7-Zip, supports all the popular compression formats, it's fast and it's has a really small footprint (818kb download!). Oh and for the devs out there the same people developed an SDK for the brilliant LZMA format. So all in all if you're hunting for a good compression tool and Winzip, Powerachiver and the like are bugging you to register 10 damn times a day give it a try! Oh, and do feel free to donate to 7-Zip if you find it useful...yes, contradiction to my previous argument but oddly I don't mind donating cash if no-one tries to force me to!