diff --git a/rse/plugins/org.eclipse.rse.subsystems.files.core/src/org/eclipse/rse/subsystems/files/core/subsystems/RemoteFile.java b/rse/plugins/org.eclipse.rse.subsystems.files.core/src/org/eclipse/rse/subsystems/files/core/subsystems/RemoteFile.java
index a8e2f1c7fd9..7f661935d36 100644
--- a/rse/plugins/org.eclipse.rse.subsystems.files.core/src/org/eclipse/rse/subsystems/files/core/subsystems/RemoteFile.java
+++ b/rse/plugins/org.eclipse.rse.subsystems.files.core/src/org/eclipse/rse/subsystems/files/core/subsystems/RemoteFile.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2002, 2012 IBM Corporation and others.
+ * Copyright (c) 2002, 2013 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
@@ -25,6 +25,7 @@
  * David McKnight (IBM)  - [283033] remoteFileTypes extension point should include "xml" type
  * David McKnight   (IBM)        - [328098] infinite loop when opening file from an UNC path
  * Rob Stryker (Red Hat)         - [393384] isArchive returning true on remote folders ending in .jar
+ * David McKnight   (IBM)        - [409785] When copying a file from a network location (e.g. \\myserver\xxx\abc.cpp) to a mapped local location in RSE, workbench hangs on this filecopy
  *******************************************************************************/
 
 package org.eclipse.rse.subsystems.files.core.subsystems;
@@ -1166,6 +1167,9 @@ public abstract class RemoteFile implements IRemoteFile,  IAdaptable, Comparable
 		{
 			return separator;
 		}
+		else if (path.equals("\\")){ //$NON-NLS-1$
+			return null; // for mapped network folder, there may not be a drive
+		}
 		else if (lastSep > 0)
 		{
 			return path.substring(0, lastSep);