I have such a code in my wix script:
<Upgrade Id="7164e0db-55d3-414f-8dee-a0e32ac6b8cb">
<UpgradeVersion Property="OLDAPPFOUND" IncludeMinimum="yes"
Minimum="0.0.0.0" IncludeMaximum="no" Maximum="2.0.0.0"/>
<UpgradeVersion Property="NEWAPPFOUND" IncludeMinimum="yes"
Minimum="2.0.0.0" />
</Upgrade>
<CustomAction Id="PreventDowngrading" Error="Newer version already
installed." />
(...)
<UI>
(...)
<AdminUISequence />
<InstallUISequence>
<Custom Action="PreventDowngrading"
After="FindRelatedProducts">NEWAPPFOUND</Custom>
<Show Dialog="InstallDlg" After="CostFinalize" />
<Show Dialog="ExitDlg" OnExit="success" />
</InstallUISequence>
</UI>
<InstallExecuteSequence>
<Custom Action="PreventDowngrading"
After="FindRelatedProducts">NEWAPPFOUND</Custom>
<RemoveExistingProducts After="InstallFinalize" />
</InstallExecuteSequence>
(...)
>From what I have read this should install my application (and so it does) but
a second attempt to run the same installer should error out with "Newer
version already installed." message box. And that second part does not work.
What am I doing wrong?
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