Miranda IM is a multi-protocol instant messenger client for Windows. Miranda IM uses very little memory and is extremely fast. It doesn't require any installation and can be mounted on a single floppy disk. Its powerful plugin system makes Miranda IN the very flexible. Only the most basic features are built, but there are currently more than 350 free plugins to download that allows users the functionality of Miranda IN the expand.
Available protocols are:
Aim (AOL Instant Messenger) Gadu-GaduIAX (inter asterisk Exchange) ICQIRC (Internet Relay Chat) JabberMSNNetsendTlenYahooAnd more...