Index: dll/win32/wlanapi/main.c
===================================================================
--- dll/win32/wlanapi/main.c	(revision 66837)
+++ dll/win32/wlanapi/main.c	(working copy)
@@ -281,6 +281,18 @@
     return ERROR_SUCCESS;        
 }  
 
+DWORD WINAPI WlanRegisterNotification(IN HANDLE hClientHandle,
+                                      IN DWORD dwNotifSource,
+                                      IN BOOL bIgnoreDuplicate,
+                                      WLAN_NOTIFICATION_CALLBACK funcCallback,
+                                      PVOID pCallbackContext,
+                                      PVOID pReserved,
+                                      PDWORD pdwPrevNotifSource)
+{
+    UNIMPLEMENTED;
+    return ERROR_SUCCESS;        
+}
+
 DWORD
 WINAPI
 WlanReasonCodeToString(IN DWORD dwReasonCode,
Index: dll/win32/wlanapi/wlanapi.spec
===================================================================
--- dll/win32/wlanapi/wlanapi.spec	(revision 66837)
+++ dll/win32/wlanapi/wlanapi.spec	(working copy)
@@ -19,7 +19,7 @@
 @ stub WlanQueryAutoConfigParameter
 @ stdcall WlanQueryInterface (ptr ptr ptr ptr ptr ptr ptr)
 @ stdcall WlanReasonCodeToString (long long ptr ptr)
-@ stub WlanRegisterNotification
+@ stdcall WlanRegisterNotification (ptr long long ptr ptr ptr ptr)
 @ stdcall WlanRenameProfile (ptr ptr ptr ptr ptr)
 @ stub WlanSaveTemporaryProfile
 @ stdcall WlanScan (ptr ptr ptr ptr ptr)
Index: include/psdk/wlanapi.h
===================================================================
--- include/psdk/wlanapi.h	(revision 66837)
+++ include/psdk/wlanapi.h	(working copy)
@@ -229,6 +229,12 @@
 
 typedef L2_NOTIFICATION_DATA WLAN_NOTIFICATION_DATA, *PWLAN_NOTIFICATION_DATA;
 
+#ifdef WIDL_ISNT_THAT_BROKEN_ANYMORE
+typedef VOID (WINAPI *WLAN_NOTIFICATION_CALLBACK) (PWLAN_NOTIFICATION_DATA, PVOID);
+#else
+typedef PVOID WLAN_NOTIFICATION_CALLBACK;
+#endif
+
 /* Functions */
 #if !defined(__midl) && !defined(__WIDL__)
 PVOID WINAPI WlanAllocateMemory(DWORD dwSize);
@@ -247,6 +253,7 @@
 DWORD WINAPI WlanIhvControl(IN HANDLE hClientHandle, IN const GUID *pInterfaceGuid, IN WLAN_IHV_CONTROL_TYPE Type, IN DWORD dwInBufferSize, IN PVOID pInBuffer, IN DWORD dwOutBufferSize, PVOID pOutBuffer, OUT PDWORD pdwBytesReturned);
 DWORD WINAPI WlanQueryInterface(IN HANDLE hClientHandle, IN const GUID *pInterfaceGuid, IN WLAN_INTF_OPCODE OpCode, PVOID pReserved, OUT PDWORD pdwDataSize, OUT PVOID *ppData, WLAN_OPCODE_VALUE_TYPE *pWlanOpcodeValueType);
 DWORD WINAPI WlanReasonCodeToString(IN DWORD dwReasonCode, IN DWORD dwBufferSize, IN PWCHAR pStringBuffer, PVOID pReserved);
+DWORD WINAPI WlanRegisterNotification(IN HANDLE hClientHandle,IN DWORD dwNotifSource, IN BOOL bIgnoreDuplicate, WLAN_NOTIFICATION_CALLBACK funcCallback, PVOID pCallbackContext, PVOID pReserved, PDWORD pdwPrevNotifSource);
 DWORD WINAPI WlanRenameProfile(IN HANDLE hClientHandle, IN const GUID *pInterfaceGuid, IN LPCWSTR strOldProfileName, IN LPCWSTR strNewProfileName, PVOID pReserved);
 DWORD WINAPI WlanSetProfile(IN HANDLE hClientHandle, IN const GUID *pInterfaceGuid, IN DWORD dwFlags, IN LPCWSTR strProfileXml, LPCWSTR strAllUserProfileSecurity, IN BOOL bOverwrite, PVOID pReserved, OUT DWORD *pdwReasonCode);
 DWORD WINAPI WlanSetProfileCustomUserData(IN HANDLE hClientHandle, IN const GUID *pInterfaceGuid, IN LPCWSTR strProfileName, IN DWORD dwDataSize, IN const PBYTE pData, PVOID pReserved);