got this off another forum
Wondering if your favorite peer-to-peer file-swapping program has spyware bundled into it? Chances are, it does.
Infected
The following file-swappers are confirmed to have spyware or other unwanted parasites bundled into them:
KaZaa (offers a paid version without spyware)
Limewire
Audiogalaxy
Bearshare (offers a paid version without spyware)
Imesh
Morpheus
Grokster
Xolox
Blubster 2.x aka Piolet (Blubster 2.0 and higher and Piolet are adware and bundle other adware)
OneMX
FreeWire
BitTorrent (Only the Unify Media version. Other versions are clean to my knowledge. See warning below)
Also see this page which details what most of the above programs bundle.
Clean
The following file-swappers have been found not to have any spyware or other advertising parasites bundled into them:
WinMX (recommended)
Shareaza
E-Mule
Gnucleus
Blubster 1.2.3 (Later versions include adware)
Soulseek
BitTorrent (see warning below)
Direct Connect
Mute
EarthStation5 (Not recommended. See below)
Regarding EarthStation5
Earth Station 5 once contained code that would allow an attacker to delete any file off of your computer’s hard drive. Whether it was placed there intentionally or was a bug left in the code by accident is unclear. For now, we recommend against using it.