There are several different setup routines, some of which have registry patches. These are being saved as well. I am not sure whether to write these as registry files or prepare a rexx registry processor to do this. The rexx registry has the advantage of being able to read registry, and also write reg_expand_sz strings without having to do unicode binary stuff. The data file could look like this. cdd also will make the folder if it does not exist. it depends on w32utils.dll behaviour.
cdd hklm\system\.... dword name=value (decimal or hex) string name=value none name delete name expand name=string