SpyBot Search and destroy"Spybot - Search & Destroy detects and removes spyware, a relatively new kind of threat not yet covered by common anti-virus applications. Spyware silently tracks your surfing behaviour to create a marketing profile for you that is transmitted without your knowledge to the compilers and sold to advertising companies. If you see new toolbars in your Internet Explorer that you haven't intentionally installed, if your browser crashes inexplicably, or if your home page has been "hijacked" (or changed without your knowledge), your computer is most probably infected with spyware. Even if you don't see the symptoms, your computer may be infected, because more and more spyware is emerging. Spybot-S&D is free, so there's no harm giving it a try to see if something has invaded your computer."
Well after that official description of "Spybot-S&D", my own experience with it, is very good. This is the best Spyware,trojans,malwares remover till date. There are other commercial products like "Webroot Spysweeper" but since "Spybot-S&D" is free, i give my points to it. Webroot Spysweeper is another powerful and the most efficient spywares remover but ever since, equally contendor "Spybot-S&D" became freeware, i'm attached with it.
There are two modes, Basic(default) and Advanced mode.
In basic mode, one can use :
1)Search and destroy - search system for possible spywares,trojans etc and eliminate them.. boom boom
2)Immunize - make system spyware ready
3)Update - this program needs to be fed with regular updates(latest bullets,guns,arsenals) to fight those latest spywares..
In advanced mode, i can tweak the program settings further more. for eg. I can enable the TeaTimer, memory resident scanner through this.
From the Tool->Resident->check both boxes i.e
Anyone interested to download this software, click here
that's just one link mirror, for list of mirrors, http://www.spybot.info/en/mirrors/index.html