AOL Instant Messenger

The AOL Instant Messenger (AIM) is an ad-supported instant messaging and presence computer program, published by AOL, which uses the OSCAR instant messaging protocol and the TOC protocol. The most recent software version is AIM 5.9, released in September of 2004. AOL has described this technology as a means of "immediate cross-Internet communication". [1]

About

AIM allows users to communicate instantly through text to their "buddies" around the world, provided they have the AIM software. AIM has 195 million users (January 2003), with a large proportion using Internet slang. Advocates claim that it is easy to locate these users by visiting chatrooms that AOL has set up solely for those purposes. Chat topics range from heavy metal music to current affairs. AOL also has a member directory where AIM users can locate others online who share their interests. AIM is also noteworthy for its use of buddy icons and buddy profiles, allowing its users to construct a personal avatar and small personal information page.

Since version 2.0, AIM has included person-to-person text messaging, chatroom messaging, and the ability to share files peer-to-peer with one's buddies. Somewhere in the 4.x series, the AIM client for Microsoft Windows added the ability to play games against one another. Recent (4.3 and later) versions of the client software store one's contact information on AOL's servers, so one can talk to up to 200 of one's buddies from any computer with Internet access. Stand-alone official AIM client software is available for free for Microsoft Windows, Mac OS, Mac OS X, Linux, Windows CE, and Palm OS. It is belived that versions of AIM including and above 4.0 contain a clause in the software license, so some users still use only the 3.0 series of AIM. However, the latest version of AOL Instant Messenger's software license does allow the use of third party clients, subject to the terms and conditions of that third party.

There is also a version of AIM, called AIM Express, that is implemented in DHTML and runs in a web browser. It is intended for use by people who are unable or unwilling to install an executable client on their machines but still want to use instant messaging. AIM Express supports many of the standard features included in the stand-alone client, but does not provide advanced features like file transfer, audio chat, or video conferencing.

The standard protocol that AIM clients use to communicate is called OSCAR. AIM Express uses another protocol called TOC. TOC has also been made available to the public, which some people believe is an attempt to throw a bone to third-party client developers and lure them away from OSCAR. If this is the case, it has not been entirely successful. AOL often changes the details of the OSCAR protocol, which tends to keep third-party clients from working properly. This has resulted in quite a bit of difficulty for programmers of third party clients.

Apple Computer's iChat AV software, released in June 2003 for Mac OS X, was the first AIM-compatible client to allow for audio and video conferencing over the AIM protocol. In February, 2004, AIM 5.5 was released, allowing Windows users to video conference with each other and with iChat users. However, AIM 5.5 does not allow the audio-only chats that are a feature of iChat AV.

AIM software is the first to use online video streaming advertisements, via the Eyewonder protocol.

AOL is beta testing an overhauled version of the AIM client, which has many of the features from the popular third party plug-ins, including tabbed messanges and AIM logging. Triton Beta

See also

• List of instant messengers
• Comparison of instant messengers

External links

Official sites and download locations

• AIM.com
• CNET Download.com

Online versions of AIM

• AIM Express
• ICQ2Go! (Supports chatting with AIM users via ICQ)
• QuickBuddy
• WebAIM.net

Third-party add-ons

• AIMFix – Remove AIM viruses
• AIMutation
• AIM+
• Aim Ad Hack
• DeadAIM
• Middle_man
• MyAIM plugin for AIM 4.8
• TOSCARClient component for Delphi

Third-party clients

• Adium (free) (Official site)
• BSFlite (free) (Official site)
• Gaim (free) (Official site)
• Kopete (free) (Official site)
• Miranda IM (free) (Official site)
• Odigo (free) (Official site)
• TerraIM (free, no install required) (Official site)
• Trillian (basic free, pro $25) (Official site)

Third-party services

Utility AIM Bots

• DoorManBot (Offline Messaging)
• Smarterchild (ChatBot/InfoBot)

AIM Bot Creation

• AI-Buddy
• Lots-A-Bots
• Run-A-Bot

Profile Tools and Extensions

• Buddy Profile
• ReAIM
• SLAPM (Software for Logical AIM Privacy Mangement)
• Subprofile.com

Other

• AIM Encrypt (Provides encryption for IMs)
• AIM Machine (Web-based Delayed Messaging)
• Away Box(Away message management)
• Remote Away (Control away messages away from one's own computer)