ExSimGuy,
Mate, I'm buggered if I know how it launches itself,
I'm just going by the reports here and elsewhere on the Net.
Luckily, I have never setup MSMail or Netscape Mail.
I've been using Eudora Pro 3.05 since it was introduced, (in pref to Pro4.05)
When my only 'Loveletter' arrived, I dumped it without opening it, and poured a large G & T

Why chance it?