Alex:
I use the <RegistrySearch> element of the <Property> to retrieve previous
user-selected property values on uninstalls. I think you could do the same
thing for updates.
<Property Id="YOUR_PROPERTY" Value="SomeValue">
<RegistrySearch Id="PropSearch" Root="HKLM" Name="YourKeyName"
Type="raw"
Key="SOFTWARE\YourCompany\YourSection\YourKey"
/>
</Property>
In this case, the property value is retreived from the registry if found.
If the key is not found in the registry, then the property value is
defaulted to the @Value attribute.
I would think the same model would work with the <IniFileSearch> element of
the <Property> as well.
David Adams
MSN MessengerID: [EMAIL PROTECTED]
>From: Alexander Gnauck <[EMAIL PROTECTED]>
>To: wix-users@lists.sourceforge.net
>Subject: [WiX-users] properties form previous versions
>Date: Thu, 21 Sep 2006 11:27:54 +0200
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>
>Hello,
>
>is there a way to get/access properties like INSTALLDIR and other custom
>properties from a previous installation which i update with an major
>upgrade using standard WIX functions?
>
>Thanks
>Alex
>
>
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