diff --git a/win/rfb_win32/DynamicFn.cxx b/win/rfb_win32/DynamicFn.cxx
new file mode 100644
index 0000000..e933f24
--- /dev/null
+++ b/win/rfb_win32/DynamicFn.cxx
@@ -0,0 +1,45 @@
+/* Copyright (C) 2002-2005 RealVNC Ltd.  All Rights Reserved.
+ * 
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * 
+ * This software 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 for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ * USA.
+ */
+
+#include <rfb_win32/DynamicFn.h>
+#include <rfb_win32/TCharArray.h>
+#include <rfb/LogWriter.h>
+
+using namespace rfb;
+using namespace win32;
+
+static LogWriter vlog("DynamicFn");
+
+
+DynamicFnBase::DynamicFnBase(const TCHAR* dllName, const char* fnName) : dllHandle(0), fnPtr(0) {
+  dllHandle = LoadLibrary(dllName);
+  if (!dllHandle) {
+    vlog.info("DLL %s not found (%d)", (const char*)CStr(dllName), GetLastError());
+    return;
+  }
+  fnPtr = GetProcAddress(dllHandle, fnName);
+  if (!fnPtr)
+    vlog.info("proc %s not found in %s (%d)", fnName, (const char*)CStr(dllName), GetLastError());
+}
+
+DynamicFnBase::~DynamicFnBase() {
+  if (dllHandle)
+    FreeLibrary(dllHandle);
+}
+
+