What is the easiest way to send an e-mail in VB 6?

The program will need to be able to send an e-mail in two different places.

The first needs to add the recipient, the sender, the subject, attach a file all with out any user interaction other than clicking a menu option in my program.

The second needs to add the recipient, the sender and the subject and allow the user to add the body and send the e-mail.

I would prefer to just use the default email program whether it be Outlook, Thunderbird Eudora etc.

Any assistance would be appreciated.

Thank you