The task is set on the server. However, you create a file that Solarwinds undertsands using the "unschedule task".
I'm probably over complicating this and I think I'm asnwering my own question, in a roundabout way. If an APE has a failover, then I imagine the windows task will need to be set on each box inteh failover pair, but when I tried that on the standby box, I got an erorr which I don't recall now what that was.
I think I'll raise a case to get this clarified.
Thanks for your time.