I was trying today for the first time to install Kazaa (free version) in my computer. I regretted immediately.
As soon as the installation finished, I ran Lavasoft Ad-Aware (I always run the antispyware after I install a program from the Internet, just in case). I got 72 critical objects!
Only 4 of them were tracking cookies; the rest were malware, bad registry keys, suspicious processes, etc. The main problem was with a Altnet program (which I have no idea what it does). I uninstalled all weird programs instantly from my computer and even had to restart my computer and run Ad-Aware again to remove most of the harmful objects.
Then, I ran Spybot just to make sure my computer was clean, and 13 more malicious registry keys/malware were found.
Never again!
I would STRONGLY suggest all of you that have these P2P programs to check your PCs for malware/spyware. I'm still going to look for a third spyware cleaner to make sure everything is out (any suggestions?).
malu
P.S.: Sorry for the long ranting, but I was surprised how this kind of very popular program can have so much trash in it, and I'm trying to understand how you guys are able to use it.
