NS7.1 is an old version, and not recommended for use. With compatible programs, like Seamonkey or Thunderbird, I suggest that resort to a manual transfer of your folders
. I don't know about Yahoo Mail, as a standalone program, and even less on how to get old folders at the website. As for Windows Mail, I have never used it. I did use Outlook Express, which came before Windows Mail. And, there is no way to import your folder of NS7.1 into Windows Mail. One would have to resort to a cumbersome procedure, going from NS7.1 to NS4.x, and then direct import to Windows Mail, if still available.
[Fixed minor BBCode error. profman, 11/20/09.]
UserAgent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/532.0 (KHTML, like Gecko) Chrome/3.0.195.33 Safari/532.0
"I've got a very poor sense of direction. I keep forgetting which way is forwards."
WinXP, SP3, 512 MB, FF3.6, 3.6 portable, TB 3.0.3, TB2.0.25, FF3.5.9, FF3.7, SM2.0.4 nightlies, Google Chrome, IE8.0, Zone Alarm Firewall; AVG9.0, JRE1.6_18