Thank you everyone. After much research and many difficulties, I finally
figured it out with the help of your replies (special thanks to the winded
reply by Blair). According to a comment on Rob's Remember Property blog, I
also found out that WiX 3.5+ supports firstSequence on SetProperty so
manually adding a Custom Action didn't end up being necessary. Been working
on this since mid-December on and off so I'm very happy!
Here's my working code that supports the following:
• On first install, the default property value will display in your Dialog
Control
• On first install, the default value can be overridden by the user.
Whatever value is entered will be stored in the registry and used for
updating the xmlfile (or whatever else you're doing with the Property)
• On upgrades, the value from the registry will display in your Dialog
Control. This value may be overridden by the user. Whatever value is
entered will again be stored in the registry and used for updating the
xmlfile
<Property Id="PROP_APPSERVER_HOSTNAME" Value="DefaultValue" Secure="yes"/>
<Property Id="PROP_REG_APPSERVER_HOSTNAME">
<RegistrySearch Id="REG_APPSERVER_NAME" Root="HKLM" Key="$(var.RegPath)"
Name="APPSERVER_HOSTNAME" Type="raw"/>
</Property>
<SetProperty Id="PROP_APPSERVER_HOSTNAME"
Value="[PROP_REG_APPSERVER_HOSTNAME]" After="AppSearch"
Sequence="first">PROP_REG_APPSERVER_HOSTNAME</SetProperty>
<DirectoryRef Id="TARGETDIR">
<Component Id="COMP_REG_PROP_APPSERVER_HOSTNAME"
Guid="{65BC2953-85EC-4CA3-B248-729EF296C2AF}">
<RegistryValue Root="HKLM" Key="$(var.RegPath)"
Name="APPSERVER_HOSTNAME" Value="[PROP_APPSERVER_HOSTNAME]" Type="string"/>
</Component>
</DirectoryRef>
***NO Custom Actions***
--
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