Uninstall triggered by new version

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Nathan - 16 Aug 2004 13:36 GMT

I have an installer class which runs some custom code on
uninstallation. However, I only want to run this code if the
uninstallation was explicitly chosen by the user. If a new version is
installed it performs an uninstall on the previous version, and the
custom code runs.

Is there any way I can tell in my installer class that the
uninstallation was triggered by a new version?

Thanks.

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Phil Wilson - 16 Aug 2004 18:23 GMT

In the old install, the property UPGRADINGPRODUCTCODE is set if the older
version is being removed by a major upgrade (=RemovePreviousVersions), so a
condition of NOT UPGRADINGPRODUCTCODE on a custom action will be true in the
older install as it's being uninstalled by an upgrade.

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Phil Wilson [MVP Windows Installer]
----

> I have an installer class which runs some custom code on
> uninstallation. However, I only want to run this code if the
[quoted text clipped - 6 lines]
>
> Thanks.

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