>Sergey,
>I downloaded the app but how do I use it. I did a "run dupclass.app" from the command line.
>Is it supposed to create a class that I can see with my class browser.
>Thanks

Hi Steve,

The instructions on how to use it are in the Readme.txt that comes with the tool:
"The class browser add-in will register itself the first time it is executed
from the command line. After the program has been run at least once you will
be able to click on a class in the class browser, right click on the toolbar,
choose "addins..." and select "Duplicate Class."