--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/agent/src/os/win32/nt4internals.cpp	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,75 @@
+/*
+ * Copyright 2000-2001 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code 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 General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+#include "nt4internals.hpp"
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+
+namespace NT4 {
+
+static HMODULE ntDLL = NULL;
+
+HMODULE loadNTDLL() {
+  if (ntDLL == NULL) {
+    ntDLL = LoadLibrary("NTDLL.DLL");
+  }
+
+  assert(ntDLL != NULL);
+  return ntDLL;
+}
+
+void unloadNTDLL() {
+  if (ntDLL != NULL) {
+    FreeLibrary(ntDLL);
+    ntDLL = NULL;
+  }
+}
+
+} // namespace NT4
+
+static HMODULE psapiDLL = NULL;
+
+HMODULE
+loadPSAPIDLL() {
+  if (psapiDLL == NULL) {
+    psapiDLL = LoadLibrary("PSAPI.DLL");
+  }
+
+  if (psapiDLL == NULL) {
+    fprintf(stderr, "Simple Windows Debug Server requires PSAPI.DLL on Windows NT 4.0.\n");
+    fprintf(stderr, "Please install this DLL from the SDK and restart the server.\n");
+    exit(1);
+  }
+
+  return psapiDLL;
+}
+
+void
+unloadPSAPIDLL() {
+  if (psapiDLL != NULL) {
+    FreeLibrary(psapiDLL);
+    psapiDLL = NULL;
+  }
+}