When I open my installer(that I created using NSIS), the UAC dialog appears with information about my installer. The field Publisher is \'unknown\'. I\'ve heard of digi
You would have to Authenticode sign the installer with a certificate authority trusted by Windows (If you want to be part of Winqual then you need a special certificate and MS only allows you to use VeriSign) because that field is extracted from the digital certificate (if one exists) and not from the PE version information.
To sign as part of the build process you can use this hack, or if you are using NSIS v3 then you can use the !finalize
command.