A note from Microsoft:
Today, Microsoft also released a set of free planning wizards which provides guidance on migration to Windows Essential Business Server. Microsoft added a new downloadable tool that scans the existing environment looking for the top (91) configurations and server health issues that affect successful setup of new server roles. This was modeled after what customer service engineers do for Microsoft’s top customers to help resolve issues. If you are interested in testing, you can download the tools here or for more information checkout the WESS team product blog.