This forum gets LOTS of requests for help, so it may take several days before one of the regular helpers can come along and provide more advanced advice to you. However, in the meantime, here is what info i can offer.
Spybot Search & Destroy is okay to use, but there are some other free programs that do a better job of cleaning malware, with the two most effective being MalwareBytes Antimalware (MBAM) and SuperAntiSpyware (SAS).
MBAM should be run in regular Windows mode, but SAS works MUCH better if you run it in Windows Safe mode. (To enter safe mode, restart your computer, then keep hitting the F8 key until a menu comes up, and then select Safe Mode with Networking Support.) Please be sure to update the definitions for both programs before running their scans.
I noticed you said your ESET antivirus program is out of date. Please, please immediately update it or install another antivirus program and then promptly update that one. Otherwise your computer is at risk of getting re-infected.
Microsoft has recently released a free program called Microsfot Security Essentials that supposedly actively protects against and cleans both viruses and malware. I have not used it myself, since I'm using a similar paid-for program provided by my employer, but have heard good things about it. There are also several other good free antivirus protection only programs such as AVG and Avast (at least I don't think they have anti-malware protection built in.)
Edited by Torvald, 20 July 2010 - 04:06 PM.