[wix-users] Deferred custom action - communication

Tue Apr 12 10:24:46 PDT 2022

Custom actions can be synchronous or asynchronous. See the Return attribute
of the CustomAction element.

https://wixtoolset.org/documentation/manual/v3/xsd/wix/customaction.html

Looks like Return="asyncNoWait" should do what you want assuming you
actually want the custom action to continue on.

"Indicates that the custom action will run asyncronously and execution may
continue after the installer terminates."

I don't have experience in this area. All my custom actions are
Return="sync" or Return="ignore".

--
Edwin G. Castro

On Tue, Apr 12, 2022 at 7:50 AM Alex Earl <slide.o.mix at gmail.com> wrote:

> I think that is the way I am going to go. Will deferred actions continue
> after the installer has completed?
>
> On Tue, Apr 12, 2022 at 6:50 AM Coryat, Jim via wix-users <
> wix-users at lists.wixtoolset.org> wrote:
>
>> Then really with this scenario the best you could hope for is to pop a
>> notification from the CA with the discovered values?
>>
>> From: Edwin Castro <egcastr at gmail.com>
>> Sent: Monday, April 11, 2022 6:37 PM
>> To: WiX Toolset Users Mailing List <wix-users at lists.wixtoolset.org>
>> Cc: Coryat, Jim <Jim.Coryat at softprocorp.com>
>> Subject: Re: [wix-users] Deferred custom action - communication
>>
>> IMPORTANT NOTICE - This message sourced from an external mail server
>> outside of the Company.
>> This only works with immediate custom actions.
>>
>> Communication is only one-way for deferred custom actions, from the
>> session to the deferred custom action via CustomActionData.
>>
>> --
>> Edwin G. Castro
>>
>>
>> On Mon, Apr 11, 2022 at 2:19 PM Coryat, Jim via wix-users <
>> wix-users at lists.wixtoolset.org<mailto:wix-users at lists.wixtoolset.org>>
>> wrote:
>> 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<mailto:
>> 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<mailto:wix-users at lists.wixtoolset.org>
>> Cc: Alex Earl <slide.o.mix at gmail.com<mailto:slide.o.mix at gmail.com>>
>> Subject: [wix-users] Deferred custom action - communication
>>
>> IMPORTANT NOTICE - This message sourced from an external mail server
>> outside of the Company.
>>
>> 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!
>>
>> Alex
>>
>>
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