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#21
How would you know if the post is helpful if you didn't even try any of the steps? You'd best change you attitude before you're tossed out of here on your ear for insulting volunteers who are trying to help you.
You say in your OP that you do not run any except an obscure AV which immediately calls into question the possibility of infection, hence Best Practices are to disinfect with MBAM and install the recommended AV.
Since almost all DLL's are generated by a malfunctioning program at Startup, it's easiest to eliminate the error by establishing a Clean Boot. Kaktussoft suggested this earlier but was ignored so I repeated it and provided a tutorial which shows an easier way to achieve and keep it over the long haul.
There is no substitute for a perfect Clean Reinstall of Win7 which is a specialty of these forums and a gift I was offering you my help with since your efforts failed to the point you wanted to roll it back using windows.old.
If you speak rudely to another volunteer here you will quickly find youself tumbling in outer cyberspace. This is the top tech forums on the web with the foremost experts in numerous areas who will not put up with anything but grateful thanks or constructive criticism.