opening many docs from explorer in same application

Hi

I would like to open many documents in the same application. i.e if a user selects bunch of document files of my application from the explorer and hits enter all of them should get opened in the same application instead of craeting new applications for each of them. (some thing like selecting a bunch of .jpg files and hitting enter opens all of them in photoshop)

Any help is greately appreciated.

Thanks
Shashi

This is Single Instance problem with additional requirement.
The simple single instance application checks if other instance
is already running, and closes itself in this case. Your application
before closing should also parse command line and ask by some
way other running instance to open file.
There are may samples of single instance application. I beleive
you can find something that you need or at least application that
is good start point.