The problem is that the registry has a specific structure, and is constantly updated by the contentlister for recent documents, settings, etc.
I think your idea has potential, but It'll still be a lot of work... update-registry would have tear apart the existing registry file to:
- Export the settings as one file
- Export each application registry entry as a specific file and possibly somehow split up the file association (so users can decide what programs open up what)
- Export the file icon associations as individual files
I'm not saying it's impossible, but I think it'd be better if iRex could code some kind of extensions directory into the contentlister that would be parsed whenever it starts, so that no modifications to the registry would be needed.