diff --git a/include/dmoreg.h b/include/dmoreg.h
new file mode 100644
index 0000000..beb3c94
--- /dev/null
+++ b/include/dmoreg.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2002 Hidenori Takeshima
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef __WINE_DMOREG_H_
+#define __WINE_DMOREG_H_
+
+
+/* structs. */
+
+typedef struct
+{
+	GUID	type;
+	GUID	subtype;
+} DMO_PARTIAL_MEDIATYPE;
+
+/* exported APIs */
+
+HRESULT WINAPI DMOEnum( REFGUID rguidCat, DWORD dwFlags, DWORD dwCountOfInTypes, const DMO_PARTIAL_MEDIATYPE* pInTypes, DWORD dwCountOfOutTypes, const DMO_PARTIAL_MEDIATYPE* pOutTypes, IEnumDMO** ppEnum );
+
+HRESULT WINAPI DMOGetName( REFCLSID rclsid, WCHAR* pwszName );
+
+HRESULT WINAPI DMOGetTypes( REFCLSID rclsid, unsigned long ulInputTypesReq, unsigned long* pulInputTypesRet, unsigned long ulOutputTypesReq, unsigned long* pulOutputTypesRet, const DMO_PARTIAL_MEDIATYPE* pOutTypes );
+
+/* DMOGuidToStrA - undocumented */
+/* DMOGuidToStrW - undocumented */
+
+HRESULT WINAPI DMORegister( LPCWSTR pwszName, REFCLSID rclsid, REFGUID rguidCat, DWORD dwFlags, DWORD dwCountOfInTypes, const DMO_PARTIAL_MEDIATYPE* pInTypes, DWORD dwCountOfOutTypes, const DMO_PARTIAL_MEDIATYPE* pOutTypes );
+
+/* DMOStrToGuidA - undocumented */
+/* DMOStrToGuidW - undocumented */
+
+HRESULT WINAPI DMOUnregister( REFCLSID rclsid, REFGUID rguidCat );
+
+
+#endif	/* __WINE_DMOREG_H_ */