How do I launch a browser page from J?
load '~system/extras/util/browser.ijs' launch_jbrowser_ 'http://www.jsoftware.com' launch_jbrowser_ 'file:///C:/dir/subdir/localpage.htm'
The browser used can be configured from menu Edit|Configure|External Programs|Web Browser. Check this if there are any problems launching the browser.
From a post by Ric Sherlock to the J Programming Forum on 2008-05-31.