VIPRE website - Download from Sunbelt Software
High performance AntiVirus and AntiSpyware. 15 day trial, $29.95 per year. Home site license available.

VIPRE Rescue website - Dnld from Sunbelt Software
Command-line utility (free) that will scan and clean a badly infected computer.

Malwarebytes' Anti-Malware
Stand-alone tool for removing malicious software. Free scanner, or buy for upgrades & support.

SUPERAntiSpyware Portable Scanner
Portable tool for removing malicious software. Free scanner, they have a paid one you can install.

Pest Patrol - Pest Patrol Research Center
Another effective tool for detecting & removing spyware. Free online scan. $39.95 includes updates for a year.

Spybot website - Download ver. 1.6 (local copy)
Great for detecting, removing, and blocking. Totally freeware.

AdAware website - Dnld Ad-Aware 2008 (local copy)
Another good anti-spyware product, free and paid versions.