Fake spyware removers

Fake anti-spyware programs is a problem.

Malicious programmers have released a large number of fake anti-spyware programs, and widely distributed Web banner ads now spuriously warn users that their computers have been infected with spyware, directing them to purchase programs which do not actually remove spyware — or worse, may add more spyware of their own.

List of fake anti-spyware programs

Do not install any of these fake spyware programs:

errorsafe (AKA system doctor)
Pest Trap
SpyAxe
AntiVirus Gold
SpywareStrike
Spyware Quake
WorldAntiSpy
Spylocked
SpyShredder
SysProtect
Spy Sheriff
Spy Wiper
PAL Spyware Remover
PSGuard
Malware
WinAntiVirus Pro 2006
WinFixer
Spydawn
ContraVirus
UltimateCleaner
MagicAntiSpy
AV System Care
Registrycleanerxp.com
SecurePCcleaner
PCSecuresystem

Source: Wikipedia.

The programs listed on Spywareknockout.com are all honest and hardworking spyware removal programs.