Well the uptime on my Win 98se is at 64:57:14 right now. Basically I try to leave it on all the time, the only problems are with IE(rare) and Windows Media Player(Crash-o-Matic). NT(W2K and it's predecessors) is basically regular Windows with a different file system and the brakes applied for stability(it spoonfeeds system resources to programs). I like 95sr2, 98, and 98se as much as I hated 95a and NT 3.x(4.0 I can tolerate but it is so slooow). Haven't tried W2K(had a copy of beta r3 not the final), going to wait on Whistler or XP or whatever they call it these days. As for ME, I have seen it on a couple of machines, one is stable, the other is a little shakey. "before 3.0 and the advent of the 486 CPU, Windows was an utterly useless piece of crap" I had an Everex(sic?) 386 that I paid about $3700 for at the time and tried to run Win, I could take short naps waiting for it to do anything. DOS, on the other hand, flew like the wind.