I'm trying to create a service app which checks the status of 80 remote
printers by accessing their web pages using the ICS HTTP Client
asynchronously.  I initially put the code in a GUI app to test it, then
tried to move it to a service and discovered that there is no
Application.ProcessMessages method so I don't seem to be able to make the
main procedure loop until the event is triggered.

In the main execute function I just want to wait until each of the requests
responds & triggers the OnRequestDone event.  How can I do this in a service

The only alternatives I can see are either make the app threaded & to put
each of the requests into a separate thread & use the synchronous calls, or
process them sequentially synchronously in the main execute function.

Any ideas?

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