How to start an external program with double click on a thumbnail? - Thanks, Bob
Edit > Preferences > File Window > User Interface > Mouse
Set it to open in associated program then a double click should open the file in the same program Windows would open it with if you double clicked it in My Computer.
A better way might be to use Favorites where you can open any selected file with any program of your choosing.
John, Thank You for the solution, much appreciated. With respect to your comment regarding age, I'll bet I've got you beat :-) and the simple things seem to be getting more and more complicated :-( Best Regards, Bob