Update registry

I have to update a ThinApp, but the original source code used to create the ThinApp can not be found.

All I have is the original ThinApp PROJECT FOLDER.

To update the file system, I think I can just modify the PROJECTS files/folder (i.e., %AppData%, %ProgramFilesDir%), then run BUILD again.

But how best to modify the registry, is it just a matter of modifying HKEY_LOCAL_MACHINE.txt or HKEY_CURRENT_USER.txt found in the PROJECT FOLDER, then running BUILD?