[wix-users] Deferred custom action - communication

Coryat, Jim Jim.Coryat at softprocorp.com
Mon Apr 11 14:18:45 PDT 2022

What I have done is to create\update a property with that value using the session object which will then be available in the installer context which you can then display on the exit dialog.

-----Original Message-----
From: wix-users <wix-users-bounces at lists.wixtoolset.org> On Behalf Of Alex Earl via wix-users
Sent: Sunday, April 10, 2022 6:59 PM
To: wix-users at lists.wixtoolset.org
Cc: Alex Earl <slide.o.mix at gmail.com>
Subject: [wix-users] Deferred custom action - communication

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Hi Everyone,

I'm new to the list, looking forward to learning more! I am currently working on the MSI installer for the Jenkins open source project. When Jenkins starts for the first time, it creates a file that contains a temporary administrator password on disk. What I would like to do in a custom action is wait for that file to be created and then display it in the installer on the ExitDlg. My custom action needs to be elevated because the file may be in another user's LocalData area. I have the username/password for that user because I do a check for service login capability using msiext. I have the custom action written, but I am not sure how to send data BACK to the wxs so that I can display the temp password in the UI. I know with a deferred custom action, you have to use CustomActionData in a .NET custom action, but all the information I have seen seems to say that it is only one way. Is there a way to do what I am trying to do?

Thanks in advance!


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