Best Anti-spyware?

Which of the available free anti-spyware programs is the most effective and has the least problems in your opinion?

ps I have ad-aware and Avast so it must be compatible

Best Anti-spyware?nortonantivirus

No one of them will catch everything. They all have different definition libraries or update processes. You should have several that scan, but only one with the shield active.

Spybot Search %26 Destroy

http://www.safer-networking.org/en/downl...

Windows Defender

http://www.microsoft.com/athome/security...

AVG Anti-Spyware 7.5

http://www.grisoft.cz/doc/downloads-prod...

a-squared Free 3.0

http://www.emsisoft.com/en/info/a2/

SUPERAntiSpyware

http://superantispyware.com/

SpywareBlaster does not scan the hard drive for spyware. Its strategy is to prevent modifications of your files and settings

http://www.javacoolsoftware.com/spywareb...

Rootkit detectors

Panda AntiRootkit

http://research.pandasoftware.com/blogs/...

AVG Anti-Rootkit

http://www.grisoft.com/doc/download-free...

Sophos Anti-Rootkit

http://www.sophos.com/products/free-tool...

F-Secure BlackLight

http://www.f-secure.com/blacklight/

Rootkitrevealer

http://www.microsoft.com/technet/sysinte...

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Best Anti-spyware?spyware