.NET Framework 4.7.2 (https://dotnet.microsoft.com/download/dotnet-framework/net472)
WindowsGSM may not be fully functional if .NET Framework 4.7.2 is not installed.
1. Download the latest version here: (https://windowsgsm.com/download/)
2. Drag and drop WindowsGSM.exe to a new directory
3. Run WindowsGSM.exe 👍
The game server files, log and installer will be auto-generated in the new directory.