Lynn, nice just what I wanted.

Just curious, is there a switch that allows capturing of the file attributes (i.e. size, date)

Thanks again for saving me a lot of...

Hi Jared, thanks for your suggestion. The issue is that, there are no set patterns with the name of the data files. Some files have extensions and some don't....

Thanks for your helpful suggestion, using the Dir *.* /s /b /n , solves part of my problem, and redefines the problem as " how to remove partially duplicate...

Thank you all for the reply & suggestions