Illustrator script to open file in Photoshop

The Bridge SDK has a script to open a selected file in Photoshop.

Can this  be done from Illustrator instead?

It seems that the cross-dom function open() should work in either an illustrator or bridge script, yet the following does NOT work in Illustrator.

Fresh from the Bridge 5.1 SDK, it doesn't work in Bridge either, but that's for a different forum.

var t = app.activeDocument.fullName;

Photoshop.open(new File(t));

It provides me with Error 2: Photoshop is undefined.

So, any ideas on how to make this work?

This is all leading up to the real problem, which is to create a 150dpi jpg file, which Illustrator won't do.

Thanks All.

--Alex