As of 03/16/2006, the following file-swappers are confirmed to have spyware or other unwanted parasites bundled into them:
* Audiogalaxy
* Imesh
* OneMX
* FreeWire
* Exeem
* BitTorrent Ultra
* FileCroc
* Kiwi Alpha
* RockItNet
* Warez P2P
* KaZaa (offers a paid version without spyware)
* Bearshare (offers a paid version without spyware)
* Xolox (Currently retesting)
* Morpheus (Older versions only. All third party bundles have been removed from Morpheus as of version 4.9.2. Current versions have an embedded banner ad but install no third party software)
* Grokster (offers a paid version without spyware)
* Blubster 2.x aka Piolet (Blubster 2.0 and higher and Piolet are adware and bundle other adware)
* MediaSeek (MediaSeek Lite from the same company does not bundle any spyware or adware)
* E-Donkey AKA Overnet (Versions prior to 1.2 available on June 1, '05 bundle adware. 1.2 is clean)
* Computwin AKA FileNavigator (While it doesn't bundle adware or spyware, this product is itself adware, pops up a full page ad in Internet Explorer upon loading and claims to track computer usage in its license)
* Ares (Official site offers a "Lite" version without the adware bundles)
* Various BitTorrent Clients (See warning below about open source clients)
* Limewire (The most current version of Limewire is reported to include spyware. LimeWire 4.9.28 is clean. Older and newer version may not be.)
For the latest info, please check out http://www.spywareinfo.com/articles/p2p/