Hi there,
I'm trying to create an installer package that writes a default value on a
fresh install but preserves a changed value on upgrade or maintenance.
What I did was author my MSI package in the following way:
<RegistryValue Root="HKLM" Key="Software\MyCompany\MyProduct" Name="Port"
Value="[PORTVALUE]" Type="integer" />
<Property Id="PORTVALUE" Value="1234">
<RegistrySearch Id="RegPortValue" Root="HKLM"
Key="Software\MyCompany\MyProduct" Name="Port" Type="raw"></RegistrySearch>
</Property>
In the resulting package, the relevant entry in the Property table is:
Property = PORTVALUE, Value="1234"
In the Registry table, the relevant entry (partial) is Value = #[PORTVALUE].
When I run this on a fresh install, it correctly writes a DWORD with value
1234.
When in maintenance/upgrade, it incorrectly writes a REG_SZ with value
#1234.
As far as I can tell, the value being retrieved from AppSearch is "#1234"..
but then when it tries to write it to the registry, the registry value
resolves to ##1234 which is a REG_SZ.
It seems that this could easily be fixed by me modifying my Property table
in the following way:
Property = PORTVALUE, Value="#1234"
And in the Registry table:
But there don't seem to be easy ways to do this. It looks like I would set
my RegistryValue @type to "String" and prefix my Property @Value with #, but
it seems a little conceptually murky ("So it gets installed as a DWORD, but
you set it to be a string?").
Does anyone have any suggestions on how to make this work? How do you
preserve a non-string registry value? I think I have to be missing
something because it seems this will break if you use any type other than
string.
Let me know if I haven't been clear.
Thanks,
:D
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