I know what you meant: "the stuff in the registry under BINARY" ...but do you understand what binary is, and what hex is, and what strings are? You have to understand those first. I'm not sure what else to say, short of posting code.
It's all just bytes. Each 2 letters, ie. 5F, 00, 13, CC, are all just bytes. if it's ascii, 1 bytes = 1 letter
so you must (must?) convert the array of bytes into an array of letters. There must be some .net functions to do this.