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diff --git a/MdePkg/Include/Protocol/VariableWrite.h b/MdePkg/Include/Protocol/VariableWrite.h
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+/** @file
+  Variable Write Architectural Protocol as defined in the DXE CIS
+
+  This code is used to produce the EFI 1.0 runtime variable services
+
+  The SetVariable () EFI 1.0 services may be updated to the EFI system table and the 
+  EFI_VARIABLE_WRITE_ARCH_PROTOCOL_GUID protocol is registered with a NULL pointer.
+
+  No CRC of the EFI system table is required, as it is done in the DXE core.
+
+  Copyright (c) 2006, Intel Corporation                                                         
+  All rights reserved. This program and the accompanying materials                          
+  are licensed and made available under the terms and conditions of the BSD License         
+  which accompanies this distribution.  The full text of the license may be found at        
+  http://opensource.org/licenses/bsd-license.php                                            
+
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+  Module Name:  VariableWrite.h
+
+  @par Revision Reference:
+  Version 0.91B.
+
+**/
+
+#ifndef __ARCH_PROTOCOL_VARIABLE_WRITE_ARCH_H__
+#define __ARCH_PROTOCOL_VARIABLE_WRITE_ARCH_H__
+
+//
+// Global ID for the Variable Write Architectural Protocol
+//
+#define EFI_VARIABLE_WRITE_ARCH_PROTOCOL_GUID \
+  { 0x6441f818, 0x6362, 0x4e44, {0xb5, 0x70, 0x7d, 0xba, 0x31, 0xdd, 0x24, 0x53 } }
+
+extern EFI_GUID gEfiVariableWriteArchProtocolGuid;
+
+#endif