[wix-users] Property "ClientProcessId" is missing in nested uninstall

Tue Feb 20 14:35:54 PST 2018

Windows continues to change. Change means things can break. For example, managed custom actions in uninstalls launched via the new Add/Remove Programs (I forget the name of it) can be broken. That was never documented.

What I've learned: Unless you are a very large company do not expect sympathy from Windows if you step off the documented path.
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From: Christopher Painter [mailto:chrpai at iswix.com]
Sent: Tuesday, February 20, 2018 10:48 AM
To: WiX Toolset Users Mailing List <wix-users at lists.wixtoolset.org>
Cc: Rob Mensching <rob at firegiant.com>
Subject: Re: Property "ClientProcessId" is missing in nested uninstall

Does Windows Installer still have a team?  Do they have a road map?    It's hard to imagine them doing anything these days that would break it.  Any breakage that could occur could be anywhere documented or not.

________________________________
From: wix-users <wix-users-bounces at lists.wixtoolset.org<mailto:wix-users-bounces at lists.wixtoolset.org>> on behalf of Rob Mensching via wix-users <wix-users at lists.wixtoolset.org<mailto:wix-users at lists.wixtoolset.org>>
Sent: Tuesday, February 20, 2018 11:44 AM
To: WiX Toolset Users Mailing List
Cc: Rob Mensching
Subject: Re: [wix-users] Property "ClientProcessId" is missing in nested uninstall

Yep. This is why we say the things we say about undocumented properties. Don't use them. They may or may not break you in the future.

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-----Original Message-----
From: wix-users [mailto:wix-users-bounces at lists.wixtoolset.org] On Behalf Of Roland Kieslinger via wix-users
Sent: Tuesday, February 20, 2018 12:07 AM
To: WiX Toolset Users Mailing List <wix-users at lists.wixtoolset.org<mailto:wix-users at lists.wixtoolset.org>>
Cc: Roland Kieslinger <rkieslinger at rzl.at<mailto:rkieslinger at rzl.at>>
Subject: Re: [wix-users] Property "ClientProcessId" is missing in nested uninstall

Ok. Thank you guys.

I need to know, if my msi was getting started by a bootstrapper or standalone. If started from a bootstrapper, I need the process id of the bootstrapper to get the user token of this process so I can impersonate the user later (for accessing network shares and stuff). This is not recommended, I know and I simply can pass an argument from my bootstrapper to my msi rather than using "CLIENTPROCESSID" and "MSICLIENTUSESEXTERNALUI". Since a few months, I've never had a problem using these properties and I thought, it's an good idea to use these ones, rather than creating them again. Also I appreciated, that these properties were getting passed to the nested uninstall. Anyways. I'll stop using them and instead pass my own property to the msi.

-----Ursprüngliche Nachricht-----
Von: Hoover, Jacob [mailto:Jacob.Hoover at greenheck.com]
Gesendet: Montag, 19. Februar 2018 18:39
An: WiX Toolset Users Mailing List <wix-users at lists.wixtoolset.org<mailto:wix-users at lists.wixtoolset.org>>
Cc: Roland Kieslinger <rkieslinger at rzl.at<mailto:rkieslinger at rzl.at>>
Betreff: RE: Property "ClientProcessId" is missing in nested uninstall

If they are not documented, then they are internal to Windows Installer. While they may be available at times, I would not rely upon them... Because they are not documented.

The real question is, why do you care if they exist or not?  What are you trying to accomplish?

-----Original Message-----
From: wix-users [mailto:wix-users-bounces at lists.wixtoolset.org] On Behalf Of Roland Kieslinger via wix-users
Sent: Monday, February 19, 2018 11:36 AM
To: WiX Toolset Users Mailing List <wix-users at lists.wixtoolset.org<mailto:wix-users at lists.wixtoolset.org>>
Cc: Roland Kieslinger <rkieslinger at rzl.at<mailto:rkieslinger at rzl.at>>
Subject: Re: [wix-users] Property "ClientProcessId" is missing in nested uninstall

So no chance to find the reason why?

I tried it a few times again, and sometimes I get the properties passed, and sometimes not?!

-----Ursprüngliche Nachricht-----
Von: Rob Mensching [mailto:rob at firegiant.com]
Gesendet: Montag, 19. Februar 2018 18:19
An: WiX Toolset Users Mailing List <wix-users at lists.wixtoolset.org<mailto:wix-users at lists.wixtoolset.org>>
Cc: Roland Kieslinger <rkieslinger at rzl.at<mailto:rkieslinger at rzl.at>>
Betreff: RE: Property "ClientProcessId" is missing in nested uninstall

IIRC, those properties are not documented by the Windows Installer.

_____________________________________________________________
 Short replies here. Complete answers over there: http://www.firegiant.com/

-----Original Message-----
From: wix-users [mailto:wix-users-bounces at lists.wixtoolset.org] On Behalf Of Roland Kieslinger via wix-users
Sent: Monday, February 19, 2018 8:48 AM
To: WiX Toolset Users Mailing List <wix-users at lists.wixtoolset.org<mailto:wix-users at lists.wixtoolset.org>>
Cc: Roland Kieslinger <rkieslinger at rzl.at<mailto:rkieslinger at rzl.at>>
Subject: [wix-users] Property "ClientProcessId" is missing in nested uninstall

Hello!

I chained a msi in my custom burn bootstrapper. If I do a MajorUpgrade (Schedule="afterInstallExecute"), I always got the following arguments via command line in my old uninstalling msi:

...
Aktion gestartet um 16:08:46: RemoveExistingProducts.
...
Command Line: UPGRADINGPRODUCTCODE={A1212C08-B8D4-4486-A5C4-474E5945F403} CLIENTPROCESSID=968 CLIENTUILEVEL=3 MSICLIENTUSESEXTERNALUI=1 REMOVE=ALL ...

Suddenly, since the last version I built, I don't get the properties "CLIENTPROCESSID" and "MSICLIENTUSESEXTERNALUI" anymore.

What could be the reason? I checked everything, I just added a few files to the msi, nothing else?!

Desperate me.

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