[Bug 45317] updating wine mono does not change version in uninstaller.exe

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=45317

--- Comment #7 from Hans Leidekker <hans at meelstraat.net> ---
(In reply to Piotr Caban from comment #6)
> I don't know yet where the problem exactly is but I can see some issues
> related to the msi file content.
> 
> wine-mono-4.7.1 and wine-mono-4.7.2 have different versions but the same
> ProductCode. According to the documentation it's wrong. When I tried to
> install test msi installer that replicates this I've got following message
> on Windows:
> "Another version of this product is already installed. Installation of this
> version cannot continue. [...]". It will need more testing but I guess that
> we should block wine-mono-4.7.2 installation if wine-mono-4.7.1 is installed.

I believe it should be possible to keep the product code for minor upgrades.
Vincent has been doing that in the past IIRC. MSDN does state that major
upgrades should change ProductCode.

msi_check_publish returns a different value since your patch. Maybe we should
get rid of that check in RegisterProduct and PublishProduct.

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