GTA III Setup.exe is part of a product called known as Grand Theft Auto III and the developer is Unknown .
If you think that this file contains a virus or another malware, please download a virus scanner.
If GTA III Setup.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 Grand Theft Auto III from the list to remove the process GTA III Setup.exe from your computer.
If you have any problems with GTA III Setup.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 Unknown, the developer of GTA III Setup.exe and ask for more information.