ColdFusion features a http://help.adobe.com/en_US/ColdFusion/9.0/CFMLRef/WSc3ff6d0ea77859461172e0811cbec22c24-782d.html tag that can be used to access and manipulate Microsoft Exchange calendar data, contacts, and more. This tag was introduced in ColdFusion 8, and supports the versions of Exchange available back then. The tag does not support Exchange 2010, much to the dismay of many users. And while I can't provide dates yet, I can confirm that the next version of ColdFusion will indeed update so that it supports Exchange 2010.