extending browser's http implementation

Hi,   a bit OT:
Does anybody know how to extend http implementation in IE and / or NN to be
able to handle a message which is an extension of standart http spec (like
say 498 defined as ... ) . you can Assume that anything can be installed on
a client PC/ browser (Activex, .dll, .exe, plugin, etc) and that http server
already was extended.
If you dont know can you please point me to where it could be answered?
Thanks a lot.
Have good holidays.
ob

Received on Thursday, 24 December 1998 23:12:13 UTC