|Thanks for your quick reply, Richard.
As far as my understanding from the link you sent, it is the way how you extend the behavior of ie browser.
It is possible to add a new toolbar to ie, for instance.
Or my understanding is not correct?
I need to write a something like an acrobat reader plug-in. See when your html page contains a pdf document, browser opens that
one in the acrobat reader plug-in. Then you can save it, zoom it, etc.