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diff --git a/TAO/tao/Service_Context.h b/TAO/tao/Service_Context.h
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+++ b/TAO/tao/Service_Context.h
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+// This may look like C, but it's really -*- C++ -*-
+// -*- C++ -*-
+
+// ===================================================================
+/**
+ *  @file   Service_Context.h
+ *
+ *  $Id$
+ *
+ *  @author Balachandran Natarajan <bala@cs.wustl.edu>
+ *
+ */
+// ===================================================================
+
+#ifndef TAO_SERVICE_CONTEXT_H
+#define TAO_SERVICE_CONTEXT_H
+#include "ace/pre.h"
+
+#include "tao/IOPC.h"
+
+#if !defined (ACE_LACKS_PRAGMA_ONCE)
+# pragma once
+#endif /* ACE_LACKS_PRAGMA_ONCE */
+
+
+/**
+ * @class Service_Context.h
+ *
+ * @brief Helper class for managing the service context list
+ *  information.
+ *
+ * This class is used to manipulate and access the service context
+ * list that is passed around with every GIOP request/reply. The
+ * definition of the service context list is simply a sequence of the
+ * following structures:
+ * typedef unsigned long ServiceId;
+ * struct ServiceContext
+ * {
+ *   ServiceId          context_id;
+ *   sequence <octet>   context_data;
+ * };
+ * typedef sequence <ServiceContext> ServiceContextList;
+ *
+ * the real motivation behind this class is to consolidate all the
+ * marshalling and unmarshalling information pertaining to service
+ * context list
+ *
+ * Note: Somewhere down the line we may want to use this class for
+ * fast access to the info that we need from the Service Context
+ * List.
+ */
+
+
+class TAO_Export TAO_Service_Context
+{
+public:
+  /// Constructor
+  TAO_Service_Context (void);
+
+
+  /// = Generic components
+
+  /// Insert the component into the list, making a copy of the octet
+  /// sequence.
+  void set_context (const IOP::ServiceContext &context);
+
+  /// Insert the component into the list, but efficiently stealing the
+  /// contents of the octet sequence.
+  void set_context (IOP::ServiceContext &context);
+
+  /// Get a copy of the context identified by <context.context_id>, return
+  /// 0 if the component is not present.
+  int get_context (IOP::ServiceContext &context) const;
+
+  /// Set the context from the CDR stream and add that to the service
+  /// Context list
+  void set_context (IOP::ServiceId id, TAO_OutputCDR &cdr);
+
+  /// Set the context from the CDR stream and return the context back
+  /// to the caller. *Does not* modify the underlying service context
+  /// list.
+  void set_context (IOP::ServiceContext &context, TAO_OutputCDR &cdr);
+
+  /// Is the <id> available in the underlying service context list? If
+  /// so return 1, else return 0
+  int is_service_id (IOP::ServiceId id);
+
+  /// = Marshaling and demarshaling the list
+  int encode (TAO_OutputCDR& cdr) const;
+  int decode (TAO_InputCDR& cdr);
+
+  /// Return the underlying service context list
+  IOP::ServiceContextList &service_info (void);
+  const IOP::ServiceContextList &service_info (void) const;
+
+  // @@ Note: The above method is only for backward comptiblity. We
+  // need to get this removed once RT folks have their service
+  // addition info done through this interface
+
+private:
+
+  /// Helper methods to implement set_context()
+  void set_context_i (const IOP::ServiceContext &context);
+  void set_context_i (IOP::ServiceContext &context);
+  void add_context_i (const IOP::ServiceContext &context);
+  void add_context_i (IOP::ServiceContext &context);
+  void set_context_i (IOP::ServiceId id, TAO_OutputCDR &cdr);
+  void set_context_i (IOP::ServiceContext &context, TAO_OutputCDR &cdr);
+
+  /// Helper methods to implement set_context()
+  int get_context_i (IOP::ServiceContext &context) const;
+
+private:
+
+  /// The ServiceContextList info
+  IOP::ServiceContextList service_context_;
+};
+
+#if defined (__ACE_INLINE__)
+# include "tao/Service_Context.inl"
+#endif /* ! __ACE_INLINE__ */
+
+
+#include "ace/post.h"
+#endif  /* TAO_SERVICE_CONTEXT_H */