I want to launch the browser in a different process when a particular link is clicked on the page. When I checked the net I found the following tip: http://www.dslreports.com/faq/3849 . But there we have to change the registry. Is there any simple way of doing this without touching the registry?
I don't believe this is possible unless you change the client computer setup or software it's running.
Why do you want to do this?
If you use the Google Chrome browser, each new window or tab runs in a separate process. Internet Explorer version 8 will do the same (it's currently in the second beta round).
Earlier versions of IE will run a new window in a separate process if it is launched from, say, the Start menu or the command line, or a link in an email (but not by clicking a link within IE). I imagine you could create a proxy that the client would run through, which would intercept the links you care about and launch them by running a command line request. That seems like more trouble than mucking with the registry though (assuming that registry change still works -- looks like your link is from 2002).