since this isn't related to security I guess this is the best place to put this. Just found a nice site that has lots of dll, ocx, sys and vxd files in case you find you have corrupted a particular file and you can't be bothered to go through that mountain of installation CD's I'm sure most of you have. Anyway take a look at the site you may find it worth book marking
http://www.dynamiclink.nl/frames/index.shtml
Z