typedef enum _REG_NOTIFY_CLASS
{
         RegNtDeleteKey = 0,
         RegNtPreDeleteKey = 0,
         RegNtSetValueKey = 1,
         RegNtPreSetValueKey = 1,
         RegNtDeleteValueKey = 2,
         RegNtPreDeleteValueKey = 2,
         RegNtSetInformationKey = 3,
         RegNtPreSetInformationKey = 3,
         RegNtRenameKey = 4,
         RegNtPreRenameKey = 4,
         RegNtEnumerateKey = 5,
         RegNtPreEnumerateKey = 5,
         RegNtEnumerateValueKey = 6,
         RegNtPreEnumerateValueKey = 6,
         RegNtQueryKey = 7,
         RegNtPreQueryKey = 7,
         RegNtQueryValueKey = 8,
         RegNtPreQueryValueKey = 8,
         RegNtQueryMultipleValueKey = 9,
         RegNtPreQueryMultipleValueKey = 9,
         RegNtPreCreateKey = 10,
         RegNtPostCreateKey = 11,
         RegNtPreOpenKey = 12,
         RegNtPostOpenKey = 13,
         RegNtKeyHandleClose = 14,
         RegNtPreKeyHandleClose = 14,
         RegNtPostDeleteKey = 15,
         RegNtPostSetValueKey = 16,
         RegNtPostDeleteValueKey = 17,
         RegNtPostSetInformationKey = 18,
         RegNtPostRenameKey = 19,
         RegNtPostEnumerateKey = 20,
         RegNtPostEnumerateValueKey = 21,
         RegNtPostQueryKey = 22,
         RegNtPostQueryValueKey = 23,
         RegNtPostQueryMultipleValueKey = 24,
         RegNtPostKeyHandleClose = 25,
         RegNtPreCreateKeyEx = 26,
         RegNtPostCreateKeyEx = 27,
         RegNtPreOpenKeyEx = 28,
         RegNtPostOpenKeyEx = 29,
         RegNtPreFlushKey = 30,
         RegNtPostFlushKey = 31,
         RegNtPreLoadKey = 32,
         RegNtPostLoadKey = 33,
         RegNtPreUnLoadKey = 34,
         RegNtPostUnLoadKey = 35,
         RegNtPreQueryKeySecurity = 36,
         RegNtPostQueryKeySecurity = 37,
         RegNtPreSetKeySecurity = 38,
         RegNtPostSetKeySecurity = 39,
         RegNtCallbackObjectContextCleanup = 40,
         MaxRegNtNotifyClass = 41
} REG_NOTIFY_CLASS;

Windows Vista Kernel Structures