Our team from ppedv (credits to Cosmin) have released the new edtion based on your feedback.
Visendo STMP Extender, extends the SMTP Server from Windows 2008 (and R2) to the POP3 protocol. So in fact you get the possibilty to pull mails via POP3 from your IIS 7 based webservers.
Download and Info
Its free, costs nothing.
The Visendo team develops: Fax Server (also for ISDN), Anti Spam and pop3 pulling (popconnect). The SMTP Extender is a spin of from that team and code base. Enjoy it.