Hey man,
There is a command called regini that you can use to change registry permissions. You should just setup a program with the command line of regini regfix.txt. Where regfix.txt has the permssions that you wanna update. Take a look at MS' technet for more information.
Ciao,
Mac
PS
Below is the text file that I use with regini.exe to change the permissions on EZCD creator 4.
\Registry\Machine\software\adaptec\Easy CD Creator 4 [1 7]
\Registry\Machine\software\adaptec\Easy CD Creator 4\4.0 [1 7]
\Registry\Machine\software\adaptec\Easy CD Creator 4\4.0\CD Copier [1 7]
\Registry\Machine\software\adaptec\Easy CD Creator 4\4.0\CD Copier\Help [1 7]
\Registry\Machine\software\adaptec\Easy CD Creator 4\4.0\Help [1 7]
\Registry\Machine\software\adaptec\Easy CD Creator 4\4.0\Installable File Systems [1 7]
\Registry\Machine\software\adaptec\Easy CD Creator 4\4.0\Installable File Systems\ISO9660 [1 7]
\Registry\Machine\software\adaptec\Easy CD Creator 4\4.0\Installable File Systems\Joliet [1 7]
\Registry\Machine\software\adaptec\Easy CD Creator 4\4.0\URLEnum [1 7]