Mercury Messenger (formerly dMSN) is a Java-based MSN client.

Features:
• Sign in with multiple accounts
• Fast file transfering
• Simultaneous sending & receiving webcam
• Offline messaging
• Extensive event notifications
• User defined event actions
• Single window (tabbed) conversations
• Customizable contact list
• Customizable message views
• Custom status icons
• Custom emoticons
• Resource saving (Webcam streams,
• Display pictures, Emoticons)
• HTTP Proxy *
• Yahoo contacts *
• Audio/Video conference *
• Multi OS: Windows, Mac OS X, Linux.
• Runs from USB stick
• Language support

Mercury requires Java to be installed on your computer.

Download: Mercury Messenger 1.9 | Screenshots