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C# - how do i activate a UI from win service?

Posted on 2011-02-13
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Last Modified: 2013-12-17
Hi Experts

we wrote  a win service  with C#.  it is local system account
and even though the interact with desktop property is on -
i can't load a GUI or EXE with GUI.

is there a way to Load UI from win service?

10x
for the help
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Question by:gudidi
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Expert Comment

by:Qlemo
ID: 34882259
Starting with Vista GUI components of interactive services are catched on WinStation 0 (which has been the "Console" in prior OS', which does no longer exist with Vista and above). There is a service running (Ui0Detect) catching Windows and notifying you that there is something to be displayed. Confirming will switch to WinStation 0 temporarily.
You cannot circumvent that. If Ui0Detect does not run, you cannot switch to the Service Desktop.
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Author Comment

by:gudidi
ID: 34882272
i don't understand.
so from the service i can not call GUI?
what is Ui0Detect?
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LVL 68

Expert Comment

by:Qlemo
ID: 34882303
I don't understand. I was expecting you to be an experienced developer, tried that already with XP or the like, because writing interactive services isn't something you would start with when learning.
How much do you know already regarding services?
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Author Comment

by:gudidi
ID: 34882321
not much. icreate service with timer that activate some Dll's.
and now i want to activate Exe file with GUI.
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Accepted Solution

by:
Qlemo earned 500 total points
ID: 34882396
First, read my post again regarding Ui0Detect - it is a service needed in your case. Check that.
If you are not getting a notification from your sevice when Ui0Detect runs, you will need to check for error codes returned in your service.
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