diff --git a/widget/src/windows/nsFileListTransferable.h b/widget/src/windows/nsFileListTransferable.h
new file mode 100644
index 000000000000..ca022639a375
--- /dev/null
+++ b/widget/src/windows/nsFileListTransferable.h
@@ -0,0 +1,89 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "NPL"); you may not use this file except in
+ * compliance with the NPL.  You may obtain a copy of the NPL at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the NPL is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+ * for the specific language governing rights and limitations under the
+ * NPL.
+ *
+ * The Initial Developer of this code under the NPL is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+ * Reserved.
+ */
+
+#ifndef nsFileListTransferable_h__
+#define nsFileListTransferable_h__
+
+#include "nsITransferable.h"
+#include "nsIGenericTransferable.h"
+#include "nsIFileListTransferable.h"
+#include "nsCOMPtr.h"
+
+
+class nsISupportsArray;
+class nsIDataFlavor;
+class nsDataObj;
+class nsVoidArray;
+
+
+/**
+ * XP FileListTransferable wrapper
+ */
+
+class nsFileListTransferable : public nsIFileListTransferable, public nsITransferable, public nsIGenericTransferable
+{
+
+public:
+  nsFileListTransferable();
+  virtual ~nsFileListTransferable();
+
+  //nsISupports
+  NS_DECL_ISUPPORTS
+  
+
+  //////////////////////////
+  //  nsITransferable
+  //////////////////////////
+  NS_IMETHOD FlavorsTransferableCanExport ( nsISupportsArray** outFlavorList ) ;
+  NS_IMETHOD GetTransferDataFlavors(nsISupportsArray ** aDataFlavorList);
+  NS_IMETHOD IsDataFlavorSupported(nsIDataFlavor * aFlavor);
+
+   // Transferable still owns |aData|. Do not delete it.
+  NS_IMETHOD GetTransferData(nsIDataFlavor * aFlavor, void ** aData, PRUint32 * aDataLen);
+  NS_IMETHOD_(PRBool) IsLargeDataSet();
+
+  //////////////////////////
+  // nsIFileListTransferable
+  //////////////////////////
+  NS_IMETHOD SetFileList(nsVoidArray * aFileList);
+  NS_IMETHOD GetFileList(nsVoidArray ** aFileList);
+
+  //////////////////////////
+  //nsIGenericTransferable
+  //////////////////////////
+  NS_IMETHOD FlavorsTransferableCanImport ( nsISupportsArray** outFlavorList ) ;
+  
+  NS_IMETHOD SetTransferData(nsIDataFlavor * aFlavor, void * aData, PRUint32 aDataLen); // Transferable consumes |aData|. Do not delete it.
+
+  NS_IMETHOD AddDataFlavor(nsIDataFlavor * aDataFlavor);
+  NS_IMETHOD RemoveDataFlavor(nsIDataFlavor * aDataFlavor);
+
+  NS_IMETHOD SetConverter(nsIFormatConverter * aConverter);
+  NS_IMETHOD GetConverter(nsIFormatConverter ** aConverter);
+
+
+protected:
+  void ClearFileList();
+
+  nsVoidArray        * mFileList;
+  nsCOMPtr<nsIFormatConverter> mFormatConv;
+  nsCOMPtr<nsIDataFlavor>      mIDListDataFlavor;
+
+};
+
+#endif // nsFileListTransferable_h__