I know there has been posts about this before (that's how I found the site.) I was using Windows ME, and got the error after trying to install internet explorer 6. My question is, if I was to get Windows XP, would the upgrade have the file that is missing, or would I have to buy the full version? I am willing to do either, but I would like to buy the cheaper one if it would work. Also, if I install the full version on XP, will all my files on the computer now be deleted? [edit]Hmm, maybe this should be in the XP section. [/edit]