Well, there's about a million free programs out there. And a million you can pay for.
However, in my experience, I have determined the best of the best to be Spyware Doctor. This is a paid for program, and everybody knows there is always another 'method' as well. Do
not[/i] pm me about it, I will not provide you with warez. The program, has been put up against multiple other anti-spyware programs, including many of the top-of-the-line ones as well, such as spysweeper. I have always found the doctor to find spyware the others would always miss, and rarely miss any itself. So this, I highly recommend. And yes, I also highly recommend purchasing it rather than the 'other' method. Also, you can download it, and just use it to 'find' the spyware, you don't need to remove it with the program, you can look at the logs and remove it manually if you know what you're doing.
http://www.pctools.com/spyware-doctor/They also have free "starter editions" floating around for Spyware Doctor from time to time. You might be able to find a good one if you look.
Now, on to the free stuff right? Okay, okay, I'm getting there.
Malwarebytes Anti-Malware is the absolute best free anti-spyware program I've been able to find other than starter editions of Spyware Doctor. It is also much lighter and less cpu-intensive (especially useful for older computers) than Spyware Doctor is. Typically, I use Malwarebytes as my main anti-spyware program and run it often, and then I occasionally use a starter edition of Spyware Doctor for a good thorough clean, that's a little more time consuming. Here is a link to Malwarebytes website, they have a free version and a non-free one:
http://www.malwarebytes.org/Ad-Aware is one of the most popular free anti-spyware programs. I'm not too fond of it, myself. Find it here:
http://www.download.com/Ad-Aware-SE-Person...ubj=dl&tag=top5Spyware bot, or Spybot, search and destroy is another popular one, however, I wouldn't put it on my recommend list.
http://spywarebot.com/?hop=advanced99&p=3&...45447&oid=&aid=Some other ones/tools:
CounterSpyEwidoWindows DefenderSpySweeperAdaware AwayEZPCFixCWShredder (For Cool Web Search Removal)
HijackThis (Helpful Tool)
HijackThis Analyzer (Use with HijackThis)
Pest PatrolTrend Micro ScannerXP Anti-SpySecurity Task Manager (Very Useful Tool)
Die nasty spyware!