Setup file tagging

Hi
i have a question and hoping to find an answer to it. i want to tag my setup files, that are generated using NSIS, by adding a new resouce to them. and i want to be able to do this oeration without having to comile NSIS script again. i was able to do that using a Respurce Editor tool and i have disabled the NCRC check. the problem im facing is that the uninstall exe gets corrupted when ever i modify the Setup Resources. any idea what could the problem be and how to solve it?

Regards
Esam

The problem is that the installer executable is the same as the uninstaller executable. The icon is replaced, but it's the same executable.

Edit the resources using !packhdr. That's executed before the CRC is calculated.