diff --git a/dlls/msi/msi.c b/dlls/msi/msi.c
index 72f6966..3544050 100644
--- a/dlls/msi/msi.c
+++ b/dlls/msi/msi.c
@@ -3021,3 +3021,16 @@ UINT WINAPI MsiIsProductElevatedA( LPCSTR szProduct, BOOL *pfElevated )
     *pfElevated = TRUE;
     return ERROR_SUCCESS;
 }
+
+/***********************************************************************
+ * MsiSetExternalUIRecord     [MSI.@]
+ */
+UINT WINAPI MsiSetExternalUIRecord( INSTALLUI_RECORD_HANDLER puiHandler,
+                                    DWORD dwMessageFilter, LPVOID pvContext,
+                                    PINSTALLUI_RECORD_HANDLER ppuiPrevHandler)
+{
+    FIXME("%p %08x %p %p\n", puiHandler, dwMessageFilter ,pvContext,
+                             ppuiPrevHandler);
+    return ERROR_CALL_NOT_IMPLEMENTED;
+}
+
diff --git a/dlls/msi/msi.spec b/dlls/msi/msi.spec
index e3a4a63..4ab0bb1 100644
--- a/dlls/msi/msi.spec
+++ b/dlls/msi/msi.spec
@@ -274,7 +274,7 @@
 278 stub MsiDetermineApplicablePatchesW
 279 stub MsiMessageBoxExA
 280 stub MsiMessageBoxExW
-281 stub MsiSetExternalUIRecord
+281 stdcall MsiSetExternalUIRecord(ptr long ptr ptr)
 
 @ stdcall -private DllCanUnloadNow()
 @ stdcall -private DllGetClassObject(ptr ptr ptr)
diff --git a/include/msi.h b/include/msi.h
index f3d4445..79f384d 100644
--- a/include/msi.h
+++ b/include/msi.h
@@ -364,6 +364,8 @@ static const WCHAR INSTALLPROPERTY_DISKPROMPTW[] = {'D','i','s','k','P','r','o',
 
 typedef INT (CALLBACK *INSTALLUI_HANDLERA)(LPVOID, UINT, LPCSTR);
 typedef INT (CALLBACK *INSTALLUI_HANDLERW)(LPVOID, UINT, LPCWSTR);
+typedef INT (CALLBACK *INSTALLUI_RECORD_HANDLER)(LPVOID, UINT, MSIHANDLE);
+typedef INSTALLUI_RECORD_HANDLER* PINSTALLUI_RECORD_HANDLER;
 
 UINT WINAPI MsiAdvertiseProductA(LPCSTR, LPCSTR, LPCSTR, LANGID);
 UINT WINAPI MsiAdvertiseProductW(LPCWSTR, LPCWSTR, LPCWSTR, LANGID);
@@ -601,6 +603,8 @@ UINT WINAPI MsiIsProductElevatedW(LPCWSTR, BOOL *);
 UINT WINAPI MsiCloseHandle(MSIHANDLE);
 UINT WINAPI MsiCloseAllHandles(void);
 INSTALLUILEVEL WINAPI MsiSetInternalUI(INSTALLUILEVEL, HWND*);
+UINT WINAPI MsiSetExternalUIRecord(INSTALLUI_RECORD_HANDLER, DWORD, LPVOID, PINSTALLUI_RECORD_HANDLER);
+
 
 #ifdef __cplusplus
 }