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UnauthorizedAccessException in Windows Vista

Hi all!

I developed a self updating application (Windows Forms). When there is a new version, I have to copy it to the directory that it was previously installed.

If the application is installed in another directory outside "\Program Files", it is working well.

The problem is that if the application is installed in "\Program Files\Product", where I have an UnauthorizedAccessException when I start copying the new version (I am using File.Copy()). Is there a way to copy files to this directory?

Thank you,
Vanessa

vnihues72 Friday, July 18, 2008 9:52 PM

To install an upgrade your updater need to be running as admin. Use an application manifest to demand elevation. You can search Vista elevation manifests in Vista development forums for more information.

Sheng Jiang 蒋晟 Friday, July 18, 2008 10:32 PM

Your problem is not specific to Vista, it would fail on XP as well when the user is logged in with a non-admin account. At least Vista gives you the option of a UAC prompt but that would rather defeat the purpose of UAC. You'll need a service to get your .exe updated, MSI can do it. Or buy a commercial solution.

Please use this forum only to ask Windows Forms questions.

nobugz Saturday, July 19, 2008 3:01 PM

Sheng Jiang 蒋晟 Friday, July 18, 2008 10:32 PM

nobugz Saturday, July 19, 2008 3:01 PM

You can use google to search for other answers

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