MSN and Microsoft are spamming!
If you've signed up for or are using MSN Explorer, then you may be sending out e-mails singing the praises of the service without even knowing it.
Upon installation of the latest version of MSN Explorer,
you are forced to make Microsoft's Hotmail your default
e-mail program. You are then asked if you want to transfer
the contents of your Outlook address book to Hotmail. When
this happens, you are offered the chance to notify everyone
of your new Hotmail address.
This is where the MSN-promoting spam is inserted. Users are given the ability to turn the service off, but most people miss it. If you're one of those people, with each 'change of address' e-mail, a copy of the spam letter goes out to your friends.