I have been looking on the web to find a plugin for Nestcape and
Internet Explorer which would enable me to provide Ruby/TK applications
from a server running Linux/Apache to clients running those browsers on
Windows XP.  I have come to the conclusion that there is not yet such a
thing.

The plugin does exist for Tcl/Tk.  There is an old version at
http://tcl.activestate.com/software/plugin/download.html.
A newer (alpha) version is available at Bitwalk:
http://b2c-1.rocketbeach.com/~bitwalk/tcltk_plugin_download.html

The source code of both is available.

I have also found the source code of a perl/Tk plugin at
http://www.lehigh.edu/~sol0/ptk/ppl/ppl.html

There was also the suggestion of a Broadway plugin - see
http://www.csn.ul.ie/~caolan/TechTexts/Broadway.html - but I have not
found source for a windows version of this.

I am sufficiently interested to look into the development of such a
plugin. I would welcome suggestions on how to go about it and what in
particular needs to be done about security.

I have posted this on RubyGarden at
http://www.rubygarden.org/ruby?RubyTk/WebBrowserPlugin
to provide a place for discussion.

John Fletcher.