P2P Messenger .NET 

P2P Messenger is secure Instant Messaging client, working by Peer-to-Peer technology. It is fully decentralized and does not require any servers. Supports public-key cryptography
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Paltalk 

The new Paltalk Messenger allows you to chat with all your AIM, MSN, Yahoo!, and ICQ buddies using only ONE program for FREE! Use the latest technology to chat with AUDIO and VIDEO, and enjoy a free trial of x-Treme video service when you sign up!
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CapeSoft Office Messenger 

CapeSoft Office Messenger is a peer to peer office instant Messaging program. It's great for sending all sorts of messages instantly to your office colleagues and it's easy enough for everyone to use. A must for every office.
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X-COM 

Peer2Peer Secure Instant Messenger and Chat Features: - encrypted communications (Blowfish / 56 bit): - encrypted instant messenger - encrypted public chat - encrypted file transfer
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AdBolish Popup Blocker Ad Stopper 

FREE Download: At last, a way to stop the Annoying Tactics of Web Advertisers and Spyware: blocks popups, banners, messenger service ads, flash ads, detects ad-serving spyware. Ads are blocked in AIM, MSN, Kazaa, Morpheus, Gator, and Trillian.
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AdsGone Popup Killer ad Blocker 

Finally, a Solution to the Web's Most Hazardous and Disruptive Problems: Blocks popups, banners, flash ads, messenger service ads, and detects spyware that serves ads. Blocks ads in Kazaa, Morpheus, Gator, ICQ, MSN, AIM, or Trillian.
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