I don't. The software I use for reading the newsgroup (Virtual Access)
pops it in
automatically.
Ah, "thread number." That didn't quite click for me before.
KingsKid43, the thread number (like
(e-mail address removed) or such) is listed in the
message headers under "message ID." As Steve mentioned, most NNTP
newsreaders (OE, Agent, Virtual Access, etc.) add it to the text
automatically. The web interface, as you are aware, doesn't do this.
Unfortunately, there's no way to view all the message headers from the web
interface. If you use Google Groups to view a message or thread, you can
click the "show options" link near the poster's name, and then click "show
original" to see the message headers. Quite honestly, though, it would
probably be easier for you to stay in the MS web interface, copy the URL
(the web page link) to the clipboard (using that button near the print
button), and paste it into a document for later use.