[wix-users] How Windows Installer creates unique S-1-5-18 value when my program is installed for all users

[David Wathen]

Hi,

I'm trying to programmatically determine if my program has been installed for all users or not.

I have done a bunch of googling and one answer I found was to see if the product code exists under

Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18

I can see that when I install my application and specify all users, from a Visual Studio Installer Project based installer, a
Registry entry is created under the S-1-5-18 key.

However, the unique GUID value that it is listed directly under S-1-5-18 doesn't match my product code GUID.

Does anyone know how this unique identifier is created or how I can determine what mine is for my application?

Thanks so much,

David


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