Sometime Today, Chetan S assembled some asciibets to say:
And oh, mozilla can read / render .mht files quite nicely... indicating an open/std format ??
Right you are: http://www.ietf.org/rfc/rfc2557.txt
my bad. However, IE and OE are currently the only clients that support it. Mozilla has support if sent as an attachment in mail, but not otherwise, as mentioned here: http://bugzilla.mozilla.org/show_bug.cgi?id=40873
but, there is maf: http://maf.mozdev.org/ ANOTHER web page archive.
Philip