REGISTRY Writing and Reading

[Robertus]

How do I use CRegKey so that I could create multiple levels of keys and subkeys, in registry?
I would like something like this:

HKEY_LOCAL_MACHINE
- Robertus(key)
-About(subkey of Robertus)
-Age xx (int value)
-Height zz (int value)
-Marital Status: "vv" (string value)
-Skills(subkey of Robertus)
- AAA(subkey of Skills)
- BBB (subkey of AAA)
- field1 87 (long value)
- field2 67 (long value)

And then how should I get the value that "hides" under BBB - field1, for example?
(I would like a piece of code if possible, please)

Thanks a lot, even if you answer me or not!