I have a situation where version 2.0 of our product was set up with an option
in the UI for user's to install at per-user or per-machine (bad design
flaw). Now in the 3.0 version of our product it's per-machine by default.
I've read that when toggling the ALLUSERS context in a major upgrade won't
work FindRelatedProducts.
So I've been playing around, and have wrapped 2 custom actions around the
FindRelatedProducts action. The idea is to blank out the ALLUSERS property
at Sequence/@199, then revert it to per-machine at Sequence/@201, given
FindRelatedProducts is at Sequence/@200.
Something like this...
<Property Id="24INSTALLPERUSER" Admin="yes" Secure="yes">
<RegistrySearch Id="RegSearchFor24INSTALLPerUser" Root="HKCU"
Key="Software\Microsoft\Installer\Products\<guid string here>"
Name="ProductName" Type="raw" />
</Property>
<CustomAction Id="ToggleALLUSERSToPerUser_ForFindRelatedProducts"
Property="ALLUSERS" Value=""/>
<CustomAction Id="RevertALLUSERSToPerMachine_AfterFindRelatedProducts"
Property="ALLUSERS" Value="1"/>
<InstallExecuteSequence>
<Custom Action="ToggleALLUSERSToPerUser_ForFindRelatedProducts"
Sequence="199">24INSTALLPERUSER AND NOT Installed</Custom>
<Custom Action="RevertALLUSERSToPerMachine_AfterFindRelatedProducts"
Sequence="201">24INSTALLPERUSER AND NOT Installed</Custom>
</InstallExecuteSequence>
<InstallUISequence>
<Custom Action="ToggleALLUSERSToPerUser_ForFindRelatedProducts"
Sequence="199">24INSTALLPERUSER AND NOT Installed</Custom>
<Custom Action="RevertALLUSERSToPerMachine_AfterFindRelatedProducts"
Sequence="201">24INSTALLPERUSER AND NOT Installed</Custom>
</InstallUISequence>
Everything seems to work fine with the install, but I have further testing
scenarios to go through. I just wanted to see if anyone else had some
knowledge on possible ways to get around this, and am also curious what
caveats might arise from using the 2 custom actions....
Thank you.
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