Join all MSN, Yahoo!, ICQ and AOL contacts in one application that allows keeping several conversations in real time with all of them.

This is what Instan-t Messenger offers, a simple messaging system, able to share files and keeping logs of your conversations as you would in any other.

Considering other aspects, there is the capacity to establish video conferences with your contacts and being used in a protected environment against Proxy/firewall, a feature that allows using it in team nets.