Here is a MUCH better and easier way to do it :
In Win98SE
Goto C:\windows\application data\identities\{many numbers and letters}\microsoft\outlook express
Backup all the files there.
When you have a fresh windows, just copy those files back to the same directory and you get all your email.
BTW, Autoexec dont take it bad I said that its a much better and easier way because I first did as you suggest and it took so much time
