HiJack This program can do it as well but here is another cool program which will reveal all the hidden badware, goodware or whatever is there in PC and will leave decision to you for what to do with them. Its a hidden threat detector, rootkit detector, drivers scanner, files scanner, process scanner, SSDT scanner, stealth objects scanner and shadow SSDT scanner.
Want to spy on any friend’s online activity? Want to know whether your friend or kids visits any specific website(s) or not? :) . I bet you do! You have to pass along a link which is itself masked. Your friend clicks it and you know where he spends his time online. That’s it.
If you are annoyed by your yahoo buddies who play hide and seek sometimes then here are few Yahoo Invisible scanners and detectors which will enable you to scan which of your buddy is pretending to be invisible but is actually online.