Tsinghua University is a software developer for Windows.
It is reported that the following Windows processes are part of Rain Classroom:
If you want to remove Rain Classroom from your computer, just go to Start > Control Panel > Add/Remove programs and select Rain Classroom from the list of programs.
It is reported that the following Windows processes are part of Diablo II Close Game Server:
If you want to remove Diablo II Close Game Server from your computer, just go to Start > Control Panel > Add/Remove programs and select Diablo II Close Game Server from the list of programs.