In the Linux world, it's possible to set an email address to forward into a php script for processing - this allows for immediate response as soon as an email is received.

I want to do the same thing but in Windows using asp.net.  As soon as an email is received it is dumped into a asp.net script for processing.  Using Scheduled Tasks isn't an option here as it must be immediate.

Spent two hours last night trying to research options but to no avail.  Anyone have any ideas?

I'm open to mail server software or .net components.