KeyExist method

The KeyExist method allows you to check whether the specified key is present in the Registry.  

BOOL KeyExist(
 BSTR Name// The name of the key to look for

  Name     [in] This is the full name of the variable to check. For instance: HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\SW
Return values
  The KeyExist method returns TRUE if the specified key is found in the Registry and FALSE otherwise.

See also
ValueExist method