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diff --git a/ACE/ace/Codeset_Registry.h b/ACE/ace/Codeset_Registry.h
new file mode 100644
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+++ b/ACE/ace/Codeset_Registry.h
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+// -*- C++ -*-
+//=============================================================================
+/**
+ *  @file   Codeset_Registry.h
+ *
+ *  $Id$
+ *
+ * ACE wrapper around access functions for the OSF's DCE codeset registry
+ * access functions
+ *
+ * For environments that intrinsicly support the DCE defined access functions,
+ * the methods in this class are simply wrappers. On other platforms, emulation
+ * is provided. The motivation for this class is to support interoperability
+ * via translators and the CDR streams, primarily in TAO, but this capability
+ * is not restricted to CORBA.
+ *
+ * The emulated functionality supports Open Group RFC #40, currently RFC 40.2,
+ * www.opengroup.org/tech/rfc/rfc40.2.html
+ *
+ *  @author Phil Mesnier <mesnier_p@ociweb.com>
+ */
+//=============================================================================
+
+#ifndef ACE_CODESET_REGISTRY_H
+#define ACE_CODESET_REGISTRY_H
+
+#include /**/ "ace/pre.h"
+#include "ace/SString.h"
+#include "ace/CDR_Base.h"
+#include "ace/Codeset_Symbols.h"
+
+#if !defined (ACE_LACKS_PRAGMA_ONCE)
+# pragma once
+#endif /* ACE_LACKS_PRAGMA_ONCE */
+
+ACE_BEGIN_VERSIONED_NAMESPACE_DECL
+
+class ACE_Export ACE_Codeset_Registry
+{
+public:
+
+  /// Based on a locale string, find the registry value and optional codeset
+  /// collection. This wraps the dce_cs_loc_to_rgy function, or emulates it.
+  static int locale_to_registry (const ACE_CString &locale,
+                                 ACE_CDR::ULong &codeset_id,
+                                 ACE_CDR::UShort * = 0,
+                                 ACE_CDR::UShort ** = 0);
+
+  /// Based on a registry value, find the locale string and optional codeset
+  /// collection.  This wraps the dce_cs_rgy_to_loc function, or emulates it.
+  static int registry_to_locale (ACE_CDR::ULong codeset_id,
+                                 ACE_CString &locale,
+                                 ACE_CDR::UShort * = 0,
+                                 ACE_CDR::UShort ** = 0);
+
+  /// Tell if two codesets are compatible. This wraps the
+  /// rpc_cs_char_set_compat_check function.
+  static int is_compatible (ACE_CDR::ULong codeset_id,
+                            ACE_CDR::ULong other);
+
+  /// Return the max number of bytes required to represent a single character.
+  /// This wraps the rpc_rgy_get_max_bytes function.
+  static ACE_CDR::Short get_max_bytes (ACE_CDR::ULong codeset_id);
+
+  enum {max_charsets_ = 5};
+protected:
+  typedef struct {
+    const char *     desc_;
+    const char *     loc_name_;
+    ACE_CDR::ULong   codeset_id_;
+    ACE_CDR::UShort  num_sets_;
+    ACE_CDR::UShort  char_sets_[max_charsets_];
+    ACE_CDR::UShort  max_bytes_;
+  } registry_entry;
+
+private:
+  static size_t const num_registry_entries_;
+  static registry_entry const registry_db_[];
+
+  static int locale_to_registry_i (const ACE_CString &locale,
+                                   ACE_CDR::ULong &codeset_id,
+                                   ACE_CDR::UShort * = 0,
+                                   ACE_CDR::UShort ** = 0);
+  static int registry_to_locale_i (ACE_CDR::ULong codeset_id,
+                                   ACE_CString &locale,
+                                   ACE_CDR::UShort * = 0,
+                                   ACE_CDR::UShort ** = 0);
+  static int is_compatible_i (ACE_CDR::ULong codeset_id,
+                              ACE_CDR::ULong other);
+  static ACE_CDR::Short get_max_bytes_i (ACE_CDR::ULong codeset_id);
+};
+
+ACE_END_VERSIONED_NAMESPACE_DECL
+
+#if defined (__ACE_INLINE__)
+#include "ace/Codeset_Registry.inl"
+#endif /* __ACE_INLINE__ */
+
+#include /**/ "ace/post.h"
+#endif /* ACE_CODESET_REGISTRY_H */