"Services" and "Disk Management" UI's are great examples of ollllld (possibly MFC?) Windows UI's and are still the standard way to manage those settings from what I can tell.
They tried doing stuff in .Net for Vista but had to revert all that; perhaps they've now come back to using it for real, but I know the new settings panel is done in C/C++.
(They might be MFC. Windows 2000 is about the right time for Microsoft to be C++ happy enough to push developers to use it over just using the bare Win32 C APIs. MMC was a pretty big deal when it first came out.)