If you think that this file contains a virus or another malware, please download a virus scanner.
If MSI3556.tmp 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 Yandex from the list to remove the process MSI3556.tmp from your computer.
You may try contacting Yandex LLC, the developer of MSI3556.tmp and ask for more information.