diff --git a/reactos/lib/ntdll/def/ntdll.def b/reactos/lib/ntdll/def/ntdll.def
index 91fa0129ed6..c872d3dada5 100644
--- a/reactos/lib/ntdll/def/ntdll.def
+++ b/reactos/lib/ntdll/def/ntdll.def
@@ -1,4 +1,4 @@
-; $Id: ntdll.def,v 1.29 1999/12/12 00:17:25 ekohl Exp $
+; $Id: ntdll.def,v 1.30 1999/12/18 10:16:11 ea Exp $
 ;
 ; ReactOS Operating System
 ;
@@ -490,7 +490,7 @@ RtlLockHeap@4
 RtlMoveMemory@12
 RtlMultiByteToUnicodeN@20
 RtlNormalizeProcessParams@4
-RtlNtStatusToDosError
+RtlNtStatusToDosError@4
 RtlNtStatusToPsxErrno@4
 RtlOemStringToUnicodeSize@4
 RtlOemStringToUnicodeString@12
diff --git a/reactos/lib/ntdll/def/ntdll.edf b/reactos/lib/ntdll/def/ntdll.edf
index 134110f54b1..04759a11051 100644
--- a/reactos/lib/ntdll/def/ntdll.edf
+++ b/reactos/lib/ntdll/def/ntdll.edf
@@ -1,4 +1,4 @@
-; $Id: ntdll.edf,v 1.19 1999/12/12 00:17:25 ekohl Exp $
+; $Id: ntdll.edf,v 1.20 1999/12/18 10:16:11 ea Exp $
 ;
 ; ReactOS Operating System
 ;
@@ -487,7 +487,7 @@ RtlLockHeap=RtlLockHeap@4
 RtlMoveMemory=RtlMoveMemory@12
 RtlMultiByteToUnicodeN=RtlMultiByteToUnicodeN@20
 RtlNormalizeProcessParams=RtlNormalizeProcessParams@4
-RtlNtStatusToDosError
+RtlNtStatusToDosError=RtlNtStatusToDosError@4
 RtlNtStatusToPsxErrno=RtlNtStatusToPsxErrno@4
 RtlOemStringToUnicodeSize=RtlOemStringToUnicodeSize@4
 RtlOemStringToUnicodeString=RtlOemStringToUnicodeString@12
diff --git a/reactos/lib/ntdll/rtl/error.c b/reactos/lib/ntdll/rtl/error.c
index e859e75f9b5..17c88cff564 100644
--- a/reactos/lib/ntdll/rtl/error.c
+++ b/reactos/lib/ntdll/rtl/error.c
@@ -1,4 +1,4 @@
-/* $Id: error.c,v 1.2 1999/12/04 21:02:25 ea Exp $
+/* $Id: error.c,v 1.3 1999/12/18 10:16:11 ea Exp $
  *
  * COPYRIGHT:         See COPYING in the top level directory
  * PROJECT:           ReactOS kernel
@@ -8,6 +8,7 @@
  * REVISION HISTORY:
  *                    22/07/99: Added RtlNtStatusToDosError.
  *	1999-11-30: Added RtlNtStatusToPsxErrno.
+ *	1999-12-18: STDCALL RtlNtStatusToDosError
  */
 
 /* INCLUDES *****************************************************************/
@@ -20,7 +21,7 @@
 /* FUNCTIONS ***************************************************************/
 
 
-DWORD RtlNtStatusToDosError(NTSTATUS Status)
+DWORD STDCALL RtlNtStatusToDosError (NTSTATUS Status)
 {
    switch (Status)
    {
@@ -624,7 +625,7 @@ STATUS_VERIFY_REQUIRED               ERROR_MEDIA_CHANGED
  * 	RtlNtStatusToPsxErrno
  *
  * DESCRIPTION
- *	Convert an Execute status ID into a POSIX error number
+ *	Convert an Executive status ID into a POSIX error number
  *	(errno.h).
  *	
  * NOTE