Closing applications opened through Autoplay program

[ChrisMan]

I am working on a project where the user will be able to open many different file types in different applications including Acrobat (Reader), Powerpoint (or PP Viewer) and excel. There are times where many different windows can be open. I am trying to device a single button to close all of the programs opened through the Autoplay program, but so far can only come up with using teh close windows. This is a problem given that any one of about 30 files could be open. I have not been able to find a way to use a wildcard to do this. Anyone have any ideas?

Thanks,

Chris