Instant messaging inside a LAN

Dec 26, 2009
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Your Mac's Specs
Macbook Pro 13" 2.5 Ghz/Mac OSX 10.6/128 GB HD SSD/NVIDIA Geforce 9400M/External drive WD HDD 500 Gb
Hi all!

Can someone suggest me an open source and simple software that allows to chat Windows and Mac platforms inside the same LAN (without internet connection)

I've found many programs but i'd like to read what do you think about...

QuickMessage Application : Portable Cross Platform LAN Messenger this looks exactly what i need but i can't find Mac version

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