Index: /trunk/src/VBox/Runtime/Makefile.kmk
===================================================================
--- /trunk/src/VBox/Runtime/Makefile.kmk	(revision 39725)
+++ /trunk/src/VBox/Runtime/Makefile.kmk	(revision 39726)
@@ -541,5 +541,4 @@
 	generic/RTProcDaemonize-generic.cpp \
 	generic/RTProcIsRunningByName-generic.cpp \
-	generic/RTSystemShutdown-generic.cpp \
 	generic/RTThreadGetNativeState-generic.cpp \
 	nt/RTErrConvertFromNtStatus.cpp \
@@ -547,6 +546,7 @@
 	r3/win/RTHandleGetStandard-win.cpp \
 	r3/win/RTSystemQueryOSInfo-win.cpp \
+	r3/win/RTSystemShutdown-win.cpp \
 	r3/win/RTSystemQueryDmiString-win.cpp \
-        r3/win/RTSystemQueryTotalRam-win.cpp \
+	r3/win/RTSystemQueryTotalRam-win.cpp \
 	r3/win/alloc-win.cpp \
 	r3/win/dir-win.cpp \
Index: /trunk/src/VBox/Runtime/r3/win/RTSystemShutdown-win.cpp
===================================================================
--- /trunk/src/VBox/Runtime/r3/win/RTSystemShutdown-win.cpp	(revision 39726)
+++ /trunk/src/VBox/Runtime/r3/win/RTSystemShutdown-win.cpp	(revision 39726)
@@ -0,0 +1,63 @@
+/* $Id$ */
+/** @file
+ * IPRT - RTSystemShutdown, Windows.
+ */
+
+/*
+ * Copyright (C) 2012 Oracle Corporation
+ *
+ * This file is part of VirtualBox Open Source Edition (OSE), as
+ * available from http://www.virtualbox.org. This file is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GPL) as published by the Free Software
+ * Foundation, in version 2 as it comes in the "COPYING" file of the
+ * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
+ * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
+ * VirtualBox OSE distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ */
+
+
+/*******************************************************************************
+*   Header Files                                                               *
+*******************************************************************************/
+#include <iprt/system.h>
+#include "internal/iprt.h"
+
+#include <iprt/assert.h>
+#include <iprt/err.h>
+#include <iprt/string.h>
+
+
+#include <Windows.h>
+
+RTDECL(int) RTSystemShutdown(RTMSINTERVAL cMsDelay, uint32_t fFlags, const char *pszLogMsg)
+{
+    AssertPtrReturn(pszLogMsg, VERR_INVALID_POINTER);
+    AssertReturn(!(fFlags & ~RTSYSTEM_SHUTDOWN_VALID_MASK), VERR_INVALID_PARAMETER);
+    
+    PRTUTF16 pwszLogMsg;
+    int rc = RTStrToUtf16(pszLogMsg, &pwszLogMsg);
+    if (RT_FAILURE(rc))
+        return rc;
+    DWORD cSecsTimeout = (cMsDelay + 499) / 1000;
+    BOOL  fRebootAfterShutdown = (fFlags & RTSYSTEM_SHUTDOWN_ACTION_MASK) == RTSYSTEM_SHUTDOWN_REBOOT
+                               ? TRUE : FALSE;
+    BOOL  fForceAppsClosed = fFlags & RTSYSTEM_SHUTDOWN_FORCE ? TRUE : FALSE;
+    if (InitiateSystemShutdownW(NULL /*pwszMachineName = NULL = localhost*/, 
+                                pwszLogMsg,
+                                cSecsTimeout,
+                                fForceAppsClosed,
+                                fRebootAfterShutdown))
+        return VINF_SUCCESS;
+    return RTErrConvertFromWin32(GetLastError());
+}
+RT_EXPORT_SYMBOL(RTSystemShutdown);
+