[wix-users] Access Denied when invoking a custom action

Steven Ogilvie stogilvie at genetec.com
Fri Apr 1 08:12:25 PDT 2022

You should show the custom action from your .wxs file and perhaps the custom action in the .cs file?

> -----Original Message-----
> From: wix-users <wix-users-bounces at lists.wixtoolset.org> On Behalf Of
> Coryat, Jim via wix-users
> Sent: April 1, 2022 11:03 AM
> To: WiX Toolset Users Mailing List <wix-users at lists.wixtoolset.org>
> Cc: Coryat, Jim <Jim.Coryat at softprocorp.com>
> Subject: [wix-users] Access Denied when invoking a custom action
> Hi group,
> Running into an issue and don't understand why.  I created a standard msi
> installer that installs support files and a Visual Studio extension. It uses one
> C# custom action to identify the installed instances of Visual Studio.  Really
> nothing special about the custom action and the code is open source. I
> borrowed the class code from the IsWix installer project.  For the person
> installing, the first time they run it, the installer will complete normally.
> Running it multiple times will cause a dialog to display when the RunDll is
> invoked for the custom action:
> "There was a problem starting <path to dll>"
> Access is denied.
> Walking through the logs shows the custom action being invoked as the
> precursor to the dialog and subsequent failure.
> Has anyone seen this before and what did you do to resolve it?
> Jim Coryat
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