You have clicked on "Yahoo! Messenger" made by "Yahoo! Inc."

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Description extracted from Wikipedia:

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NameYahoo Messenger
Initial release1998|03|09
Preview releaseMac: 3.0.1 Beta build 35554 2011|07|20
Latest stable releaseWindows:
Mac: 3.0.1
Linux: 1.0.6
SunOS 5.7: 0.99.17-1
Solaris 8: 1.0.4
FreeBSD 4/5: 1.0.4
iOS: 2.2.9 2014|05|05
Operating systemMicrosoft Windows, Mac OS X, Android, Symbian, iOS and UNIX/Linux/FreeBSD/Solaris (no longer supported)
TypeInstant messaging client and Internet phone
LicenseProprietary adware

Yahoo Messenger (sometimes abbreviated YM ) is an advertisement-supported instant messaging client and associated protocol provided by Yahoo. Yahoo Messenger is provided free of charge and can be downloaded and used with a generic "Yahoo ID" which also allows access to other Yahoo services, such as Yahoo Mail, where users can be automatically notified when they receive new email. Yahoo also offers PC-PC, PC-Phone and Phone-to-PC service, file transfers, webcam hosting, text messaging service, and chat rooms in various categories. Yahoo Messenger was originally launched under the name Yahoo Pager on March 9, 1998. In addition to instant messaging features similar to those offered by ICQ, it also offers (on Microsoft Windows) features such as: IMVironments (customizing the look of Instant Message windows, some of which include authorized themes of famous cartoons such as Garfield or Dilbert), address-book integration and Custom Status Messages. It was also the first major IM client to feature BUZZing and music-status. Another recently added feature is customized avatars. Yahoo Messenger also allows users to access Yahoo Chat Rooms. As of December 14, 2012, all public chat rooms on Yahoo Messenger have been shut down as part of a series of features being changed/added/deleted.

Technical information:

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Icon statusVisible
Icon settingHidden when inactive
Executable fileE:\Program Files\Yahoo!\Messenger\YahooMessenger.exe
Parent processE:\WINDOWS\explorer.exe
Can be uninstalledYes
Size on disk4.9 Mb
Minimum recorded memory usage61.2 Mb
Average recorded memory usage61.2 Mb
Maximum recorded memory usage61.2 Mb
Date when maximum memory usage occured01.11.2009 06:32:10
Minimum recorded CPU usage0%
Average recorded CPU usage0%
Maximum recorded CPU usage0%
Date when maximum CPU usage occured01.11.2009 06:32:10
Started at01.11.2009 05:18:37
Total CPU time 38 seconds
Imported functions
Some relevant texts from the exe file