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How to interact with basic MSI in silent mode?


I need to implement a basic MSI with silent installation – and there will be an external wrapper above the MSI which will display the GUI.
Since that wrapper will show all the UI, it should communicate & retrieve some information from the MSI during the installation.
So my questions are:
1. How can I report the installation progress from the MSI to the wrapper? (The wrapper should show the progress bar itself…)
I can write a custom action, but how to obtain the progress itself from the MSI?
2. How can I report errors like “no disk space”, “locked files”, etc to the wrapper?

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Re: How to interact with basic MSI in silent mode?

You might search the help for "external UI handler" for information. (InstallScript MSI projects are one example of this approach.)
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