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diff --git a/ace/Process_Mutex.h b/ace/Process_Mutex.h
deleted file mode 100644
index 2c2d9ce17b1..00000000000
--- a/ace/Process_Mutex.h
+++ /dev/null
@@ -1,196 +0,0 @@
-/* -*- C++ -*- */
-
-//=============================================================================
-/**
- *  @file    Process_Mutex.h
- *
- *  $Id$
- *
- *   A wrapper for mutexes that can be used across processes on
- *   the same host machine, as well as within a process, of
- *   course.
- *
- *
- *  @author Doug Schmidt
- */
-//=============================================================================
-
-
-#ifndef ACE_PROCESS_MUTEX_H
-#define ACE_PROCESS_MUTEX_H
-#include "ace/pre.h"
-
-#include "ace/config-all.h"
-
-#if !defined (ACE_LACKS_PRAGMA_ONCE)
-# pragma once
-#endif /* ACE_LACKS_PRAGMA_ONCE */
-
-// To make it easier to carry the setting though this file as well as
-// Process_Mutex.{cpp inl}, set a private macro here.
-#ifdef _ACE_USE_SV_SEM
-#  undef _ACE_USE_SV_SEM
-#endif /* _ACE_USE_SV_SEM */
-#if defined (ACE_HAS_SYSV_IPC) && !defined (ACE_USES_MUTEX_FOR_PROCESS_MUTEX)
-#  include "ace/SV_Semaphore_Complex.h"
-#  define _ACE_USE_SV_SEM
-#else
-#  include "ace/Synch.h"
-#endif /* ACE_HAS_SYSV_IPC && !ACE_USES_MUTEX_FOR_PROCESS_MUTEX */
-
-/**
- * @class ACE_Process_Mutex
- *
- * @brief A wrapper for mutexes that can be used across processes on
- * the same host machine, as well as within a process, of
- * course.
- *
- * @attention The mechanism upon which @c ACE_Process_Mutex is based
- * can be configured at build time to be either @c ACE_SV_Semaphore_Complex
- * (on platforms that support it) or @c ACE_Mutex. On platforms that
- * require interprocess mutexes be allocated from shared memory (Pthreads
- * and UI Threads are examples), @c ACE_SV_Semaphore_Complex provides a
- * more reliable mechanism for implementing inter-process mutex than
- * @c ACE_Mutex. However, at least on some platforms,
- * @c ACE_SV_Semaphore_Complex is limited to a small number of
- * objects by the underlying System V IPC kernel parameters. If you
- * want to force use of @c ACE_Mutex as the underlying mechanism, set
- * @c ACE_USES_MUTEX_FOR_PROCESS_MUTEX in your @c config.h file.
- * Also, if you require the ability to do a timed @c acquire(), you must
- * set @c ACE_USES_MUTEX_FOR_PROCESS_MUTEX, as timed acquire does not
- * work with System V semaphores.
- */
-class ACE_Export ACE_Process_Mutex
-{
-public:
-  /**
-   * Create a Process_Mutex, passing in the optional @c name.
-   *
-   * @param name optional, null-terminated string containing the name of
-   * the object. Multiple users of the same @c ACE_Process_Mutex must use
-   * the same name to access the same object. If not specified, a name
-   * is generated.
-   * @param arg optional, attributes to be used to initialize the mutex.
-   * If using @c ACE_SV_Semaphore_Complex as the underlying mechanism,
-   * this argument is ignored.
-   */
-  ACE_Process_Mutex (const char *name = 0,
-                     void *arg = 0);
-
-#if defined (ACE_HAS_WCHAR)
-  /**
-   * Create a Process_Mutex, passing in the optional @c name. (@c wchar_t
-   * version)
-   *
-   * @param name optional, null-terminated string containing the name of
-   * the object. Multiple users of the same @c ACE_Process_Mutex must use
-   * the same name to access the same object. If not specified, a name
-   * is generated.
-   * @param arg optional, attributes to be used to initialize the mutex.
-   * If using @c ACE_SV_Semaphore_Complex as the underlying mechanism,
-   * this argument is ignored.
-   */
-  ACE_Process_Mutex (const wchar_t *name,
-                     void *arg = 0);
-#endif /* ACE_HAS_WCHAR */
-
-  ~ACE_Process_Mutex (void);
-
-  /**
-   * Explicitly destroy the mutex.  Note that only one thread should
-   * call this method since it doesn't protect against race
-   * conditions.
-   *
-   * @return 0 on success; -1 on failure.
-   */
-  int remove (void);
-
-  /**
-   * Acquire lock ownership (wait on queue if necessary).
-   *
-   * @return 0 on success; -1 on failure.
-   */
-  int acquire (void);
-
-  /**
-   * Acquire lock ownership, but timeout if lock if hasn't been
-   * acquired by given time.
-   *
-   * @param tv the absolute time until which the caller is willing to
-   * wait to acquire the lock.
-   *
-   * @return 0 on success; -1 on failure.
-   */
-  int acquire (ACE_Time_Value &tv);
-
-  /**
-   * Conditionally acquire lock (i.e., don't wait on queue).
-   *
-   * @return 0 on success; -1 on failure.  If the lock could not be acquired
-   * because someone else already had the lock, @c errno is set to @c EBUSY.
-   */
-  int tryacquire (void);
-
-  /// Release lock and unblock a thread at head of queue.
-  int release (void);
-
-  /// Acquire lock ownership (wait on queue if necessary).
-  int acquire_read (void);
-
-  /// Acquire lock ownership (wait on queue if necessary).
-  int acquire_write (void);
-
-  /**
-   * Conditionally acquire a lock (i.e., won't block).  Returns -1 on
-   * failure.  If we "failed" because someone else already had the
-   * lock, <errno> is set to <EBUSY>.
-   */
-  int tryacquire_read (void);
-
-  /**
-   * Conditionally acquire a lock (i.e., won't block).  Returns -1 on
-   * failure.  If we "failed" because someone else already had the
-   * lock, <errno> is set to <EBUSY>.
-   */
-  int tryacquire_write (void);
-
-  /**
-   * This is only here for consistency with the other synchronization
-   * APIs and usability with Lock adapters. Assumes the caller already has
-   * acquired the mutex and returns 0 in all cases.
-   */
-  int tryacquire_write_upgrade (void);
-
-#if !defined (_ACE_USE_SV_SEM)
-  /// Return the underlying mutex.
-  const ACE_mutex_t &lock (void) const;
-#endif /* !_ACE_USE_SV_SEM */
-
-  /// Dump the state of an object.
-  void dump (void) const;
-
-  /// Declare the dynamic allocation hooks.
-  ACE_ALLOC_HOOK_DECLARE;
-
-private:
-#if defined (_ACE_USE_SV_SEM)
-  /// If the user does not provide a name we generate a unique name in
-  /// this buffer.
-  ACE_TCHAR name_[ACE_UNIQUE_NAME_LEN];
-
-  /// Create and return the unique name.
-  const ACE_TCHAR *unique_name (void);
-
-  /// We need this to get the right semantics...
-  ACE_SV_Semaphore_Complex lock_;
-#else
-  ACE_Mutex lock_;
-#endif /* _ACE_USE_SV_SEM */
-};
-
-#if defined (__ACE_INLINE__)
-#include "ace/Process_Mutex.inl"
-#endif /* __ACE_INLINE__ */
-
-#include "ace/post.h"
-#endif /* ACE_PROCESS_MUTEX_H */