Nasty Spyware

So I got a nasty spyware that kept coming back no matter how much I tried to zap it with Ad-Aware. I installed the newest Windows antivirus program (Windows Defender) and it is STILL unable to download the latest definitions. So, here's what I had to do. Downloaded a 14 day trial of ewido anti-malware, updated it's definitions, then booted into safe mode and did a full scan. TOOK 1.5 HOURS! However, it found 187 items that Ad-Aware had missed. Rebooted into Normal mode, spyware gone. Props to ewido. I think we all knew that Ad-Aware doesn't catch everything, but I had never heard of ewido before hitting the forums regarding that specific spyware. No more random pop up ads, finally.