This looks like an infestation of malware calling for help from those who understand how to use HiJackThis. (I don't, but have had a lot of help)
Nellie2 is one of the most able and generous contributors to this site and if you can gain her help you can be guided through the complex process of cleaning all the gubbins away.
I suggest you download and run CClean, and Ad-Aware first to clear the basic nonsense.
Then download and run the latest HijackThis, save the log (it goes into a Notepad file)
Copy and Paste this log with a title "Nellie2 Help"....... BUT do it in about 3 successive posts because it will exceed the 800 word limit if you try and send it all at once.
Finally it will make things much easier all round if you paste a chunk and then edit it with an extra line space at the end of each line. If you don't, then the whole lot will squash up into one almost unreadable block.