Error Message "cannot Supply Requested Class"

I cannot print a Live Mail message using File->Print. It dies with error message "cannot supply requested class" naming line 2378 and code 0. File problem is res://ieframe.dll/previewjs.Other problem was WLM starting with "Message Database not found." For this one there was no Inbox messages, and several other folders were empty (all locally created by me). I spent a bit of time restoring my messages from Comcast and resorting my local files. then, I had to use saved folders in WLM to get some old messages. Then redelete messages from 1-2-2013 that were on Comcast. I dumbly downloaded IE10 to "try" it. It turns out you can't get rid of it, and I suspect that it is the source of these problems. However, you can't turn it off! I tried reinstalling IE9 and was told "it is already installed -- install failed." So I'm stuck with 10. I removed and reinstalled printer driver and every program works perfectly EXCEPT WLM, using ieframe.dll. I looked into replacing this dll with advice on the net, but there are things like REG Pro (or something like that) which are reviewed as causing problems and malware.

should I persist in trying to get a "new" copy of ieframe.dll or is that embedded in IE10? Can I get rid of IE10 and revert back to 9? Or what is solution; wait until IE10 is official and gets reinstalled? I wish I had noticed it was a Beta. When I installed it, the button read "Try it" which was all I was going to do. Meantime I installed Chrome so I have a backup browser. I am currently designing my monster gamer and when I get it glued together I'm not sure if I should go straight to Windows 8 or not. (I have one license left for 7 from a three chair version.)