Tools to eliminate Spyware and other Pests
Lavasoft's spyware removal tool
Spybot search and destroy
Majorgeeks   comprehensive list of other tools, some of which might be needed since not sny single program takes care of everything.
Web Browser redirection and hijack Elimination
merjin.org's first step in fixing redirection
merjin's CWS fixer
AboutBuster (needed for the dreaded res://xxyyzzaa.dll/index.html#96676 hijack); from zerosrealm.com, where there are other tools.