I second everything from Capt. Here is a free trojan scan and trojan killer:
Trojan Scan:
http://www.windowsecurity.com/trojanscan/
SWATIT:
http://swatit.org/download.html
Also, if you were not advised, do a general clean out:
reboot, back into safe mode:
Tools > Intenet Options> General Tab > Delete files > check the box to delete off line content > click ok > delete cookies > click ok. click ok...
dump %TEMP% files:
Dble click My Computer icon on desk top > type
%TEMP% in the address bar > click enter > click on "edit" and click "select all" > click on "file" click delete. Everything will delete, and you will not need anything there if you have rebotted at least once since your last download.
Empty recycle bin.
Go to start > Programs > Accessories > System Tools > run Disk Clean Up, then Scan Disk, if Scan Disk tells you there are programs running in the background--ctrl+alt+delete and end-task on everything except systray and explorer, then run Scan Disk > then Defragmenter.
Don't worry about those .dll files, just get the system restore disabled and leave it that way until you are squeaky clean
Update Windows, IE, and Outlook (affects IE settigns even if you do not use Outlook), update your AV and Spybot and Adaware and run them in safe mode. If they come out clean, it is generally accepted that you are clean.
Thresher