Exists somebody that can realy help me with MAPI (email) ?

I friends...

I'm tired and going CRAZY!!!

I'm trying to generate a email using the MAPI.

The email with this specifications:
- 1 suject
- X address
- 1 body as **HTML** formated text
- X attachments

Then the default email client open the message. If the user want to change
something in the message, he can. Now he will cofirm if the email will be
sent or not!!!

Exists a way to generate this using a FREE code!?!?!?
I don't want to pay a source code to make this, I need a FREE OPEN SOURCE
soluction, please :D

Thanks, a lot!!!!
bye!