MS Pats Themselves on the Back

Microsoft's latest ploy has them patting themselves on the back...from your mailbox. With the new beta of MSN Explorer it seems that floods of e-mails have been sent out promoting the new service attached to change-of-address e-mails sent by some users. Now, users can opt-out of sending the message, but many of those users did not even know it existed. The new message is sent out during setup when the install program asks if you would like to send out change-of-address notifications to the users in your address book. By clicking yes, the self-promoting spam is born. Is this necessarily wrong? Many companies such as Yahoo and virtually every other Web-based mail system attach something to the end of your messages you send...but did Microsoft go too far?