But Shell requires the full path to the executable file, that is unknown here.
B4X:
Dim sh As Shell
sh.Initialize("", "start", Array As String("ms-settings:network-wifi"))
sh.WorkingDirectory = File.DirTemp
sh.RunSynchronous(1000)
...gives:
java.io.IOException: Cannot run program "start" (in directory "C:\Users\VLAD-HP\AppData\Local\Temp"): CreateProcess error=2, The system cannot find the file specified.