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Updating Windows environment variables using ClickOnce

Posted on 2006-06-29
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Last Modified: 2009-12-16
I am deploying a .NET Windows Application, written in C#. As part of the installation process, I would like to set some Windows environment variables to values that the user specifies. I could use Windows Installer to do this, but is it possible in ClickOnce? If so, could you point me to a tutorial or give me a hint on how to do it?

Thanks.
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Question by:xelia
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whatsit2002 earned 500 total points
ID: 17077451
Unfortunately, you just don't have that kind of control with a ClickOnce application. As you seem to know, an MSI based installation could fire off a custom Installer class, but ClickOnce has no such capabilities.

Another hitch is that when a ClickOnce app is installed, it isn't installed on the machine level. It is only installed on the user level, so every user that logs into a machine must install the application separately.

My only suggestion is to put code into your ClickOnce app to do the following:
When your application loads, check to see if this is the first time the user has run it (use a registry key or something). If so, prompt them for the required information and set the variables then. Also, after setting the variables, set your registry key (or whatever you checked to see if this was the first time the app was run) so that the user doesn't have to go through the setup process again.

Other than something like that, I don't know of a way to get a ClickOnce install to do what you're looking for.
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by:xelia
ID: 17106416
Thanks whatsit2002. Your suggestion will be very useful.
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