ExpandUNCFilename and OS/network question

From: Jerry Blumenthal (jerry_at_blumenthalsoftware.com)
Date: 11/30/03 

Date: Sun, 30 Nov 2003 11:24:19 -0500

If a drive is mapped as M: then will
ExpandUNCFilename('m:\folder1\file1.txt') be returned as m: or as the
expanded \\ servername\sharename\folder1\file1.txt ???

Is there any network or Win OS version which changes this behavior? 

-- 
Jerry Blumenthal
jerry@blumenthalsoftware.com