Hello All --

I am a newbie to GPO - so this question may be a bit elementary -

Background: Our domain structure is flat as can be - up until this project, we had not created any OU's. I have since created some OU's for our workstations (ou's - servers, desktops, laptops)

I have an msi package that I would like to deploy to these machines (all of which are in the OU's listed above, which are sub-ou's of a parent - Workstations)

I added a dozen desktops to the desktops OU and created a policy to deploy my msi file - this worked beautifully. I had a problem with the msi file and had to remove it from these machines. After running various tests on some machines, I feel I now have a working copy of the msi file.

My question is this: During my testing phases with the MSI file, I installed it manually on a handful of machines. If I create the GPO to install this MSI file, and put a machine that already has it installed inside the OU that the GPO is applied to - what will happen?

Thanks in advance

Hope this isnt too confusing

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It _should_ detect presence of the product on the workstation, therefore full reinstall _should_ not happen in the simplest (no instance transforms) scenario. If your application setting says "uninstall when falls out of scope", the application should get removed when unassigned, even though it was originally installed by manual means...

Having said that, I have to add a disclaimer that it's just my observations. In you situation, I'd suggest setting up a test to make sure...
Answered 09/29/2008 by: revizor
Third Degree Blue Belt

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It's actually the other way around. GPO doesn't care if it's installed or not. GPO will attempt to reinstalll it if the GPO was not the one that installed it to start with.

That being said, you might be able to get the MSI to quit gracefully if it's already installed. Long ago, we wanted to use GPO to ensure that Mcafee was installed on the servers that way. Unfortunately, it would do a reinstall even if it was already present.
Answered 10/04/2008 by: Chipster
Blue Belt

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