Added some missing headers.

diff --git a/include/dmo.h b/include/dmo.h
new file mode 100644
index 0000000..db4216b
--- /dev/null
+++ b/include/dmo.h
@@ -0,0 +1,28 @@
+/*
+ * 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_DMO_H_
+#define __WINE_DMO_H_
+
+#include "mediaobj.h"
+#include "dmoreg.h"
+#include "dmort.h"
+#include "mediaerr.h"
+
+
+#endif	/* __WINE_DMO_H_ */