RegDisableReflectionKey function (winreg.h)

Disables registry reflection for the specified key. Disabling reflection for a key does not affect reflection of any subkeys.


LONG RegDisableReflectionKey(
  [in] HKEY hBase


[in] hBase

A handle to an open registry key. This handle is returned by the RegCreateKeyEx, RegCreateKeyTransacted, RegOpenKeyEx, or RegOpenKeyTransacted function; it cannot specify a key on a remote computer.

If the key is not on the reflection list, the function succeeds but has no effect. For more information, see Registry Redirector and Registry Reflection.

Return value

If the function succeeds, the return value is ERROR_SUCCESS.

If the function fails, the return value is a nonzero error code defined in Winerror.h. You can use the FormatMessage function with the FORMAT_MESSAGE_FROM_SYSTEM flag to get a generic description of the error.


On WOW64, 32-bit applications view a registry tree that is separate from the registry tree that 64-bit applications view. Registry reflection copies specific registry keys and values between the two views.

To restore registry reflection for a disabled key, use the RegEnableReflectionKey function.


Minimum supported client Windows Vista, Windows XP Professional x64 Edition [desktop apps only]
Minimum supported server Windows Server 2008, Windows Server 2003 with SP1 [desktop apps only]
Target Platform Windows
Header winreg.h (include Windows.h)
Library Advapi32.lib
DLL Advapi32.dll

See also





Registry Functions

Registry Redirector