[1.0/1.1] Registry-related codes in C#

hi all,
can someone help me to explain the following codes. i got no idea what it wanna do.

int hKey = 0;
byte[] uidByte = new byte[] {};
hKey = Registry.OpenKey(Registry.RootKey.HKEY_LOCAL_MACHINE, "PDALOCK");
uidByte = Registry.QueryValueBinary(hKey, "UID");
Registry.CloseKey(ref hKey);

longwar

It looks like it's supposed to open the PDALOCK key under HKLM and read the binary value named UID. Those methods are not members of the Microsoft.Win32.Registry class though.

Delphi.NET?