public static extern int RegCloseKey(IntPtr hKey);

public static extern int CeRegCloseKey(uint hkey);

function info on msdn at http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wceactsy/html/cerefCeRegCloseKeyRAPI.asp

    CeRegCloseKey(key);

CeRegCloseKey(key);

    CeRegCloseKey(key2);

CeRegCloseKey(key);

CeRegCloseKey(key);

CeRegCloseKey(key);

CeRegCloseKey(key);

    CeRegCloseKey(key)

public static extern int RegCloseKey(

Declare Function RegCloseKey Lib "advapi32.dll" (ByVal hKey As UIntPtr) As Integer

    Public Declare Function RegCloseKey Lib "advapi32.dll" (ByVal hKey As Integer) _

    RegCloseKey(hkeyKeytoOpen)

      RegCloseKey(hKey);

      RegCloseKey(hKey);

      RegCloseKey(hKey);

            RegCloseKey(hKey);

      RegCloseKey(hKey);

            RegCloseKey(hKey);

Provided you specify true in the SafeRegistryHandle constructor, there is then no need to call RegCloseKey either.

            RegCloseKey(hKey);