1)   IM Lock Enterprise 2006
IM Lock Enterprise controls and blocks access to Instant Messaging and peer to peer services. Free trial version available - sets up in less than a minute. Blocks all popular services: MSN Messenger, Yahoo Messenger, ICQ, AIM, Skype,iTunes, and more.
Block P2P, block messenger, block im, internet filtering, block Internet Explorer, block MSN Messenger, block Yahoo Messenger, block chat, block download, block AIM,

 2)   IM Lock Professional Single User 2.2
IM Lock controls and blocks access to Instant Messaging and peer to peer services. Free trial version available - sets up in less than a minute. Blocks all popular services: MSN Messenger, Yahoo Messenger, ICQ, AIM, Skype, eMule, iTunes, and more.
block messenger, block im, internet filtering, block Internet Explorer, block MSN Messenger, block Yahoo Messenger, block chat, block download, block AIM,