How to use MSI.DLL to programatically install .msi file and also provide abort/cancel? [duplicate]

This question already has answers here: How to interactive a silently installing msi? (Progress data and cancel it) (3 answers) 开发者_运维问答 Closed 2 years ago.

In order to provide custom more friendly looking UI when updating the application via the downloaded .msi file I have to provide a custom (WPF, if it matters) window that will in turn replicate what msiexec is doing by calling MSI.DLL functions via interop.

Initially it was a simple msiexec call against the downloaded .msi file, and it would be nice if it could stay that simple.

I also need to provide Cancel functionality just like msiexec does.

What would be the proper way to programatically start/stop/abort this via MSI.DLL functions?

(What I did is look at different MSI Interop implementations, WiX included, but couldn't easily recognize APIs to do this).

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That's what MSI calls an "external UI handler." See the MSI SDK for details, such as "Monitoring an Installation Using MsiSetExternalUI."