Yesterday, Matt and I talked about providers, and I mentioned that I wasn’t going to go on talking about the registry provider, as that’s what Matt is talking about today! What’s nice is that you don’t have to type out HKEY_LOCAL_MACHINE and HKEY_CURRENT_USER while working with this provider. You can refer to them by HKLM and HKCU, respectively.
However, those are the only 2 registry hives that are provided for. So if you are working with the other hives (HKEY_CLASSES_ROOT, HKEY_USERS, and HKEY_CURRENT_CONFIG), you will have to rely on your previous knowledge of accessing them to work with them. There are no HKCR, HKU, or HKCC drives to help out in this case.