I'm new to WiX 3.0 and am writing my first WiX-based installer (from Wise).
If the product is already installed (in the current version), I want the installer to automatically switch to "repair". It should behave exactly as if I clicked “repair” in the Windows software dialog box.
It should behave in a manner consistent with the overall system installation process.
I read the documentation but cannot solve this problem ...
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