diff --git a/include/Makefile.in b/include/Makefile.in
index 8617c431dfc..d2ceb153961 100644
--- a/include/Makefile.in
+++ b/include/Makefile.in
@@ -234,6 +234,7 @@ SRCDIR_INCLUDES = \
 	mciavi.h \
 	mcx.h \
 	mediaerr.h \
+	midles.h \
 	minmax.h \
 	mmddk.h \
 	mmreg.h \
diff --git a/include/midles.h b/include/midles.h
new file mode 100644
index 00000000000..213ff7c147b
--- /dev/null
+++ b/include/midles.h
@@ -0,0 +1,133 @@
+/*
+ * NDR Serialization Services
+ *
+ * Copyright (c) 2007 Robert Shearman for CodeWeavers
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#ifndef __WINE_MIDLES_H__
+#define __WINE_MIDLES_H__
+
+#include <rpcndr.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef enum
+{
+    MES_ENCODE,
+    MES_DECODE
+} MIDL_ES_CODE;
+
+typedef enum
+{
+    MES_INCREMENTAL_HANDLE,
+    MES_FIXED_BUFFER_HANDLE,
+    MES_DYNAMIC_BUFFER_HANDLE
+} MIDL_ES_HANDLE_STYLE;
+
+typedef void (__RPC_USER * MIDL_ES_ALLOC)(void *,char **,unsigned int *);
+typedef void (__RPC_USER * MIDL_ES_WRITE)(void *,char *,unsigned int);
+typedef void (__RPC_USER * MIDL_ES_READ)(void *,char **,unsigned int *);
+
+typedef struct _MIDL_ES_MESSAGE
+{
+    MIDL_STUB_MESSAGE       StubMsg;
+    MIDL_ES_CODE            Operation;
+    void                   *UserState;
+    ULONG                   MesVersion : 8;
+    ULONG                   HandleStyle : 8;
+    ULONG                   HandleFlags : 8;
+    ULONG                   Reserve : 8;
+    MIDL_ES_ALLOC           Alloc;
+    MIDL_ES_WRITE           Write;
+    MIDL_ES_READ            Read;
+    unsigned char          *Buffer;
+    ULONG                   BufferSize;
+    unsigned char         **pDynBuffer;
+    unsigned char          *pEncodedSize;
+    RPC_SYNTAX_IDENTIFIER   InterfaceId;
+    ULONG                   ProcNumber;
+    ULONG                   AlienDataRep;
+    ULONG                   IncrDataSize;
+    ULONG                   ByteCount;
+} MIDL_ES_MESSAGE, *PMIDL_ES_MESSAGE;
+
+typedef PMIDL_ES_MESSAGE MIDL_ES_HANDLE;
+
+typedef struct _MIDL_TYPE_PICKLING_INFO
+{
+    ULONG       Version;
+    ULONG       Flags;
+    UINT_PTR    Reserved[3];
+} MIDL_TYPE_PICKLING_INFO, *PMIDL_TYPE_PICKLING_INFO;
+
+RPC_STATUS RPC_ENTRY
+ MesEncodeIncrementalHandleCreate(void *,MIDL_ES_ALLOC,MIDL_ES_WRITE,handle_t *);
+RPC_STATUS RPC_ENTRY
+ MesDecodeIncrementalHandleCreate(void *,MIDL_ES_READ,handle_t *);
+RPC_STATUS RPC_ENTRY
+ MesIncrementalHandleReset(handle_t,void *,MIDL_ES_ALLOC,MIDL_ES_WRITE,MIDL_ES_READ,MIDL_ES_CODE);
+
+RPC_STATUS RPC_ENTRY
+ MesEncodeFixedBufferHandleCreate(char *,ULONG,ULONG *,handle_t *);
+RPC_STATUS RPC_ENTRY
+ MesEncodeDynBufferHandleCreate(char **,ULONG *,handle_t *);
+RPC_STATUS RPC_ENTRY
+ MesDecodeBufferHandleCreate(char *,ULONG,handle_t *);
+RPC_STATUS RPC_ENTRY
+ MesBufferHandleReset(handle_t,ULONG,MIDL_ES_CODE,char **,ULONG,ULONG *);
+
+RPC_STATUS RPC_ENTRY
+ MesHandleFree(handle_t);
+
+RPC_STATUS RPC_ENTRY
+ MesInqProcEncodingId(handle_t,PRPC_SYNTAX_IDENTIFIER,ULONG *);
+
+SIZE_T RPC_ENTRY
+ NdrMesSimpleTypeAlignSize(handle_t);
+void RPC_ENTRY
+ NdrMesSimpleTypeDecode(handle_t,void *,short);
+void RPC_ENTRY
+ NdrMesSimpleTypeEncode(handle_t,const MIDL_STUB_DESC *,const void *,short);
+
+SIZE_T RPC_ENTRY
+ NdrMesTypeAlignSize(handle_t,const MIDL_STUB_DESC *,PFORMAT_STRING,const void *);
+void RPC_ENTRY
+ NdrMesTypeEncode(handle_t,const MIDL_STUB_DESC *,PFORMAT_STRING,const void *);
+void RPC_ENTRY
+ NdrMesTypeDecode(handle_t,const MIDL_STUB_DESC *,PFORMAT_STRING,void *);
+
+SIZE_T RPC_ENTRY
+ NdrMesTypeAlignSize2(handle_t,const MIDL_TYPE_PICKLING_INFO *,const MIDL_STUB_DESC *,PFORMAT_STRING,const void *);
+void RPC_ENTRY
+ NdrMesTypeEncode2(handle_t,const MIDL_TYPE_PICKLING_INFO *,const MIDL_STUB_DESC *,PFORMAT_STRING,const void *);
+void RPC_ENTRY
+ NdrMesTypeDecode2(handle_t,const MIDL_TYPE_PICKLING_INFO *,const MIDL_STUB_DESC *,PFORMAT_STRING,void *);
+void RPC_ENTRY
+ NdrMesTypeFree2(handle_t,const MIDL_TYPE_PICKLING_INFO *,const MIDL_STUB_DESC *,PFORMAT_STRING,void *);
+
+void RPC_VAR_ENTRY
+ NdrMesProcEncodeDecode(handle_t,const MIDL_STUB_DESC *,PFORMAT_STRING,...);
+CLIENT_CALL_RETURN RPC_VAR_ENTRY
+ NdrMesProcEncodeDeocde2(handle_t,const MIDL_STUB_DESC *,PFORMAT_STRING,...);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __WINE_MIDLES_H__ */