1)   Freo Messenger 1.8.0
Freo Messenger is a multi protocol instant messenger that works with Windows whose support includes AIM, ICQ, IRC, MSN and Jabber; it also allows you to make use of other popular instant messaging protocols including Gadu-Gadu, Netsend, Skype, Yahoo.
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 2)   AM Messenger 1.2.1.1
Create 100% free & private IM Network with AM. You can couple it with AM NT Service or AM Server to enjoy your secure and private IM System.
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