That's what I was expecting ...
I thought you could only do ONE of the following:
Create message
Send an email
Start a program
The messsage, if it works, will be a regular windows popup window with the only button to click OK with the message text above it.
I've done the message before as I have a popup that shows up any time I connect a removable drive to my desktop.
That's what I was expecting, but I couldn't make it work.
I was only trying to do it, to troubleshoot a problem I was having.
I was unaware that Windows automatically turned itself off after 2 minutes (if activated by an unattended task).
I wanted my machine to wake up and perform an AV scan (4:00 am).
I set:
- The task time (3:45 am)
- The Program Update time to 5 minutes later (3:50 am)
- The Virus Database update time to 5 minutes after that (3:55 am).
- The AV scan time to 5 minutes after that (4:00 am).
Of course none of the AV steps started.
I thought that if I got it to display a message, I would see the Dialog box on my Desktop (which would confirm that the task had started).
That never worked.
I then tried setting a task to display a message (in a few minutes, whilst I watched).
No message ever appeared.
I then included a sound (IrfanView).
The sound worked!
Brink sorted it out my original problem for me.

So I never bothered to try to figure out what was happening.