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Subject: [ActiveDir] Group Policy App Removal Questions

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colemancraig1 User is Offline

Posts:40

02/20/2008 11:46 AM
We have a App that we Assigned with Group Policy to our workstations that we now need to remove. The option to "Uninstall this application when it falls out of the scope of management" was and still is checked. The problem is that the MSI package no longer exists at the Software Distribution Point and our backups of that MSI had failed. L L My questions are: 1. Do I need the MSI to exist at the source for the application to uninstall without issue??? I believe it will successfully uninstall but may cause a hang during the policy refresh. Reference the SourceList key for that app in the registry HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Products\9A41C65EFB191744B B75C52CFA75813E\SourceList 2. If the answer is "yes" to question 1 then do I need the "exact" MSI or can I use a MSI of that product with the same filename? Meaning, is there a thumbprint of hash referencing the original MSI? Thanks much.

SteveRochford User is Offline

Posts:10

02/21/2008 2:43 AM
>From past experience, whether you need the MSI at the original location depends on the app. Old versions of MS Office would fall over if they couldn't get the original MSI; newer ones cache the MSI locally so the fact the server copy is not available probably doesn't matter. The worst are ones which copy stuff to %temp% and install from there - there's almost no chance that the MSI will be available at a later date. If you can't uninstall it and its presence is preventing an upgrade running then you can use MSIZap in a script to clean up the left overs. Steve From: ActiveDir-owner@mail.activedir.org [mailto:ActiveDir-owner@mail.activedir.org] On Behalf Of Craig, Coleman Sent: 20 February 2008 16:39 To: ActiveDir@mail.activedir.org Subject: [ActiveDir] Group Policy App Removal Questions We have a App that we Assigned with Group Policy to our workstations that we now need to remove. The option to "Uninstall this application when it falls out of the scope of management" was and still is checked. The problem is that the MSI package no longer exists at the Software Distribution Point and our backups of that MSI had failed. L L My questions are: 1. Do I need the MSI to exist at the source for the application to uninstall without issue??? I believe it will successfully uninstall but may cause a hang during the policy refresh. Reference the SourceList key for that app in the registry HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Products\9A41C65EFB191744B B75C52CFA75813E\SourceList 2. If the answer is "yes" to question 1 then do I need the "exact" MSI or can I use a MSI of that product with the same filename? Meaning, is there a thumbprint of hash referencing the original MSI? Thanks much.

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