The most annoying Microsoft product?

I think the most annoying Microsoft product is MS Visio (anyone who has used it before will know!) I can't seem to line anything up correctly, the damn interface is hard to work with and in general it's a useless piece of crap!

Other than that..word drives me crazy on a regular basis (lining up images and so forth) images going onto a second page for no apparent reason! Excel, Access and Power point I can just about deal with!

I have no problem with Ie , wmp or msn messenger. What about you? What MS product do you hate and why?