Trillian - the universal client for message transfer through servers ICQ, AIM, IRC, Yahoo and MSN Messenger. After his set, you can exchange messages at once in all listed networks without installation of the programs themselves ICQ, AIM, etc. Available features such as encrypted chat (both bilateral and in the mode of conference), support for multiple ICQ / AIM concurrent sessions, multi-server connections, sound effects, support skins (through XLM) c possibility of adjustment (like a transparent background).

Features:
Basic Messaging
SecureIM
Privacy Settings
File Transfers
Direct Connections
Group Conferences
Display Pictures
Real-time Video Chat
Video Filter Effects
Image Capture
Video Capture
Emotiblips
Picture In Picture
Side By Side
Full Screen Video
Real-time Audio Chat
Quick Access To Input And Output Controls
Audio Muting
Emotiblips
Pause Live Video And Audio
Rewind
Fast Forward
"Seek" Slider Bar
Record Live Video And Audio Clips
Capture Video Into Image Files
Integrated Web Searching
Instant Lookup
Status Panel
Notification Windows
Add Extra Information To Contact Tooltip
Rename Contacts
Explorer Integration (Drag Files To Contacts)
Icon View
Meta Contacts
Floating Contacts
Panels
Tabbed Chat Windows
Emoticons
Emotisounds
Timestamping
Transparent Windows
Smart Tabs
Basic Messaging
File Transfers
Display Pictures
Audio Chat
Video Chat
iChat AV Compatible

What's New in This Release:
Improved speed
Bug fixes
Biography (AIM Profiles)
Universal Plug-and-Play (UPnP)
On the fly link / emoticons
Font face support in IMs
Undo in edit area
Orphaned contacts (no more merging)
Many IRC enhancements
Better Yahoo file transfers
Identities (per section Biography / Icons)