ps3tm.exe is part of a product called known as Target Manager for PS3 and the developer is SN Systems Ltd. .
If you think that this file contains a virus or another malware, please download a virus scanner.
If ps3tm.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 Target Manager for PS3 from the list to remove the process ps3tm.exe from your computer.
If you have any problems with ps3tm.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 SN Systems Ltd., the developer of ps3tm.exe and ask for more information.