#cs
  Registering these threads will halt the event / loop that's already running resulting in partial-multithreading functionality
  Note that this slows down your program to an extent, but not substancially.
#ce

Simulation() ; start the simulation

Func Simulation()
    $dummy_boolean = False
    ThreadRegister()
    Do ; Make a deliberate infinite-loop
        MsgBox(0, "", "test")
    Until $dummy_boolean = True
EndFunc

Func ThreadRegister() ; Register the threads
    AdlibRegister("Thread1", 100)
    AdlibRegister("Thread2", 100)
    AdlibRegister("Thread3", 100)
EndFunc

Func Thread1()
    $nMsg = GUIGetMsg()
    If $nMsg = $EVENT Then
        ; Do stuff
    EndIf
EndFunc

Func Thread2()
    $nMsg = GUIGetMsg()
    If $nMsg = $EVENT Then
        ; Do stuff
    EndIf
EndFunc

Func Thread3()
    $nMsg = GUIGetMsg()
    If $nMsg = $EVENT Then
        ; Do stuff
    EndIf
EndFunc