Hey! My first post here...
To test some bugs it may be useful to run multiple instances of the game - as normally it is not possible I have made a small app which allows this.
I have made this in C# which allows to generate a small .exe file which runs on most Windows machines.
You can get the source code and the executable on Github:https://github.com/ideaconnect/fomultirun/blob/master/Program.cs
To run just type:fomultirun FOnline.exe
Or create yourself a shortcut.
First argument is simply the path to FOnline.exe.
Project files are in Visual Studio 2017 Community (free) edition format. Executable uses only .NET 2.0 therefore should work with Windows XP SP3 and older newer systems without a problem, older releases will require .NET 2.0 to be installed.
Tested with latest FOnline: Reloaded.