We would like to Call a function module from within one of our scripts. We know how to do this, but my question is:
Can we perform the Call to the function module and NOT have to wait for a return? That is, asynchronous. Basically, we want to set off another process and don't care what the results are.

GuiXT supports synchronous RFC only, but you can first call your own RFC synchronously from GuiXT and then make an asynchronous Call from there in your ABAP coding.