You have clicked on "Yahoo! Messenger Tray" that belongs to "Yahoo! Messenger" made by "Yahoo! Inc."

Measures you can take regarding this program:

Digital signature File is signed
Application has windowsYes
Internet serverNo
Uses the internetNo
Imports potentialy dangerous functionsNo
Safety RatingSafety Rating

Description extracted from Wikipedia:

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NameYahoo! Messenger
Initial release(as Yahoo! Pager)\
TypeInstant messaging client and Internet phone
LicenseProprietary adware
Latest stable releaseWindows:
Mac: 3.0.2
Linux: 1.0.6
SunOS 5.7: 0.99.17-1
Solaris 8: 1.0.4
FreeBSD 4/5: 1.0.4
Android: 2.9.2
iOS: 1.0.7 2016|02|29
Operating systemAndroid, iOS. Microsoft Windows, Symbian, Mac OS X, Linux, FreeBSD, Solaris

Yahoo! Messenger (sometimes abbreviated Y!M ) was an advertisement-supported instant messaging client and associated protocol provided by Yahoo!. Yahoo Messenger was provided free of charge and could be downloaded and used with a generic "Yahoo ID" which also allowed access to other Yahoo! services, such as Yahoo! Mail, where users could be automatically notified when they received new email. Yahoo! also offered PC-to-PC, PC-to-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 offered (on Microsoft Windows) features such as: IMVironments (customizing the look of Instant Message windows, some of which include authorized themes of various 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. As of March 27, 2016, the only supported clients were the Android, iOS and web browser clients. The original Windows, Mac, Linux and Solaris clients were not supported anymore, and their servers began shutting down on August 5, 2016, with the clients no longer working by August 31, 2016. It turned out that the servers for the legacy clients were finally shut down sometime between the mid-morning and early afternoon hours Eastern Standard Time on September 1, 2016, resulting in the legacy desktop clients no longer being able to access their buddy/contact lists. Yahoo Messenger was shut down on July 17, 2018.

Technical information:

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Icon statusVisible
Icon settingHidden when inactive
Executable fileC:\Program Files (x86)\Yahoo!\Messenger\Ymsgr_tray.exe
Can be uninstalledYes
Size on disk77.3 Kb
Minimum recorded memory usage18.5 Mb
Average recorded memory usage18.5 Mb
Maximum recorded memory usage18.5 Mb
Date when maximum memory usage occured30-9-2012 20:22:51
Minimum recorded CPU usage0%
Average recorded CPU usage0%
Maximum recorded CPU usage0%
Date when maximum CPU usage occured30-9-2012 20:22:51
Started at30-9-2012 18:42:46
Total CPU time 0 seconds
Imported functions
Some relevant texts from the exe file