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2012/2/8 Alexander Krivács Schrøder <alexander.schro...@mermaid.no>
> I have an installer that installs a configuration file, like so:
>
> <Feature Id="AppName.Feature" Title="Application Name" Level="1">
> <Feature Id="AppConfig.Feature" Level="1" Display="hidden">
> <Component Id="AppConfig.Component"
> Guid="{E56D54A5-0646-4D0C-9F95-73F82E293705}" Directory="INSTALLLOCATION">
> <File Source="$(var.AppName.TargetPath).config" />
> </Component>
> <Condition Level="0">KEEP_EXISTING_CONFIG = 1 AND
> APPCONFIGEXISTS</Condition>
> </Feature>
> ...
> </Feature>
>
> The APPCONFIGEXISTS is brought out like so:
>
>
>
> <!-- Check for existing application configuration file -->
>
> <Property Id="APPCONFIGEXISTS" >
>
> <DirectorySearch Id="CheckAppConfigDir" Path="INSTALLDIR" Depth="0">
>
> <FileSearch Id="CheckAppConfigFile"
> Name="$(var.AppName.TargetFileName).config" />
>
> </DirectorySearch>
>
> </Property>
>
> The KEEP_EXISTING_CONFIG is a command-line variable, sent in to
> msiexec.exe.
>
> This configuration alone does not do the trick (obviously, since I'm
> asking here) as the configuration file is removed by the next version of
> the MSI before it starts its installation. The Component element has a
> "Permanent" property, but with that one enabled, it certainly does not
> behave as expected (does not get removed on uninstall, never gets replaced
> on upgrade, regardless of what the value of KEEP_EXISTING_CONFIG is).
>
> Any ideas?
>
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