Even though installing pre-requisites on Windows Server 2008 R2 is simple and straight forward as described here, it makes it even faster if you were to use a script to do so.
MVP Anderson Patricio recently published a script for the same. What the script did not do is what I took liberty to add. I am publishing entire script below with credit to Anderson where it is due.
IT shops moving off of IBM Domino servers or generic POP/IMAP sources and onto Exchange Server 2010 won’t be able to do it with free tools from Microsoft. The company isn’t offering the Transporter Suite for the new Exchange, leaving little choice but to buy expensive third party software.
The Microsoft Transporter Suite launched in 2007 as a free tool for migrating content from Lotus Domino servers or generic POP/IMAP servers to Exchange and Active Directory. Microsoft recently said it will not support the tools for Exchange Server 2010 because there are better third-party options.
The company said it would stop investing in the tools because most customers were already using more full featured tools from Microsoft partners, versus the free Exchange migration tool offered by Microsoft. “Based on this feedback, we decided not to continue investing in these basic, free tools, and instead switched our focus to helping customers understand the end-to-end solutions that are available through our partners,” according to the company.