Diablo II.exe is part of a product called known as D2Loader by Onlyer and the developer is Tsinghua Unversity .
If you think that this file contains a virus or another malware, please download a virus scanner.
If Diablo II.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 D2Loader by Onlyer from the list to remove the process Diablo II.exe from your computer.
If you have any problems with Diablo II.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 Tsinghua Unversity, the developer of Diablo II.exe and ask for more information.