Hi Thomas,

> I have an install file that presents a configuration dialog where users
> can enter database connection string information, which is used to
> update a connection string in a .config file.
> 
> 
> 
> It works quite well during the initial install. But during a repair
> install the data the user originally entered is lost, the corresponding
> public properties revert back to their default values (as specified in
> the original <Property> tags), and those are written into the .config
> file.
> 
> The configuration dialog is never displayed during the repair.

MSI does not support this. You'll have to use a custom action to read the
values from the config file during maintenance. 

Kind regards,
Henning Krause

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