I'm Looking For code to eliminate frames

When I send a link or an ad to Hotmail addresses and other web based email services, my site always appears in a frame after the user clicks on it. The coding of my shopping cart software doesn't allow users to purchase items while in a frame. I’m trying to eliminate that frame.

I have already tried to create a pop-up window however, hotmail still creates their frame around it.
Is there any code I can use to eliminate that frame so users can go directly to my site?
Or does anyone have an idea of how to route customers to avoid the frame.
One simple way is to tell them to Copy/Paste a URL, but who would really do that?
Please Let me know If you have any code or ideas.
Thanks,

Steve
steve@onlinevibes.com