Multiple triggering events

[javeld]

If I want to shut down at 6 pm, provided that my virus scan has finished, there has to be some sort of ..and.. condition. Any suggestions how to do this?  

[Oleg]

You may to start the task by scheduler (or another trigger) but in the task do the following:

If <condition> then
   ...
   do something
   ...
end if

or

If <condition> then
   ...
   do something
   ...
else
   ...
   do something else
   ...
end if