MyChat Server Error 79998: MyChat Server is already running
Error
Error #79998: another copy of MyChat Server is already running
Error description
MyChat Server is running and working. Repeat launch of the same server is impossible.
Problem solution
Check if MyChat Server is running. Perhaps you already started it as a system service or use it is another user session.
Open the Task Manager, usually it's there:
In a context menu, the option "Properties", specify the path where mcserv.exe were launched from.