hi i had someone hack my msn messenger account and everyone told me that this person knew alot about me but it could've been my friend.i want to know is there a software for checking keyloggers and all that other stuff.
Try Ad aware SE and Spybot, they both catch most common keyloggers. Or submit a hijack this log in the Anti virus/ Anti Spyware forums.
In addition, try out Who'sWatchingMe. Be careful with "anti-spyware" software - most of the stuff you have to pay for is spyware itself, or at least doesn't work. Also, be aware that many of this phony anti-spyware software attempts to impersonate good, legit software and the websites distributing it. Get Ad-Aware from http://www.lavasoft.de and SpyBot from http://www.safer-networking.net BTW, you also may want to pick up HijackThis! if AAW or SpyBot don't find anything.