shopping system

Does anyone know of a good shopping system (like paypal). But instead of a physical shipping address it would generate a password/username link so they can just access a downloadable file on your site.

Like somebody makes a purchase, they pay, then they get a link with a special/random password and username and then that will take them to the downloadable item they bought. I don't see that paypal does that? Thanks...

I just reg'd www.colorschemer.com the other day. This is the payment system they used.

http://www.clickbank.com/overview.html?aepstein

After I payed, I immediately had the reg code.

The prob I see is that if the warez boyz decide to publish your passwd--I guess you could monitor the activity and shutdown the user id.

The guys over at photowebber.com use some kind of system, but I think they email the d'load url if I remember right.