Vengito (alias Needed Special Tools)
Commercial
Secure messaging with private\public keys.
23
eM Client
15,103
Freeware
Access your email accounts and chat with your contacts from desktop.
Serial Scientific International, Inc.
1
Shareware
Offers advanced functionality, security and stability that businesses require.
1
Stefaan Degroote
15
Freeware
This is a lightweight messaging application to use within the same network.
Password Unlocker, Inc.
Shareware
With this tool you can recover credentials for your MSN, GoogleTalk and AOL.
11,682
Yahoo!, Inc.
1,734,184
Freeware
Chat with friends and enjoy stealth settings, video calls, PC calls.
13
America Online, Inc.
538
Freeware
AOL Instant Messenger supports instant messaging and file sharing on Windows.
46
S-IMCO, Inc.
4
S-IMCO's secure enterprise instant messaging system for corporate messaging.
9
WebEx
132
Freeware
AIM Pro is a business instant messaging service to send secure instant messages.
1
Erlang Software
3,937
Open source
Create instant messaging, e-comerce, and telecomunication applications.
16
IOn
1,270
Freeware
BORGChat is a LAN instant messaging application for Windows.
78
Zemerick Software, Inc.
3
Freeware
IMAware is a program for Windows to quickly scan for instant messaging programs.
22
ICQ Ltd.
624
Freeware
ICQ Lite is a windows instant messaging software similar with other messengers.
Jabber, Inc.
Commercial
Jabber simplifies enterprise instant messaging offering all required technology.
1
Cerulean Studios
59
Shareware
Trillian Pro is a multi-protocol instant messaging service.
