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How to get previous installation features

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  • 7 posts

Posted 12 November 2004 - 12:08


I have two questions.

1. How to determinate if a previous version of my program is already installed

2. How to findout what features was selected to be installed in the previous version.

Because if a previous version of the program is already installed I need to use registry settings set by that installation. Now when I upgrade, msi resets the registry entries, not good.

I use VBScript in my custom actions.


Simon G

Stefan Krueger

Stefan Krueger


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Posted 12 November 2004 - 14:55

You can add an entry to the Upgarde table to detect the previous version. Set the Migrate feature States bit to keep feature selection.