how to deal with registry

I'm trying to make EarMaster school portable. But I don't know how to setting for registry in the 'applaunch.ini' file. I have already read manual and some tutorial but it seems useless for me. Any one please give me some guides! Thanks all. Here is the registry change:
http://nl7.upanh.com/b6.s27.d1/286debcddbbb9c229769eedc71022ab8_43757417...