Copy of Yahoo Messenger.exe is part of a product called known as Yahoo! Messenger and the developer is Yahoo! Inc. .
If you think that this file contains a virus or another malware, please download a virus scanner.
If Copy of Yahoo Messenger.exe is using too much CPU or too much memory in your system, it is possible that your file has been infected with a virus. Installing an antivirus is recommended.
Not all processes can be uninstalled without the help of a 3rd party tool, especially malware. To see if it can be uninstalled, first go to Start > Control Panel > Add/Remove programs and select Yahoo! Messenger from the list to remove the process Copy of Yahoo Messenger.exe from your computer.
If you have any problems with Copy of Yahoo Messenger.exe, you may try using a registry cleaner or a speed-up software to check, analyze, and fix problems that are affecting the performance of your computer.
You may try contacting Yahoo! Inc., the developer of Copy of Yahoo Messenger.exe and ask for more information.