Microsoft Exchange Server 2007 SP1 VHD

Download this fully configured virtual machine of the latest release of Exchange Server 2007 SP1. Evaluate the new capabilities of Exchange Server 2007 SP1, which deliver the advanced protection your company demands, the anywhere access people throughout your organization want, and the operational efficiency you need

http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=e99f2a96-ffbc-4323-9676-9657607c4a52

Exchange Server 2010 VHD (With Office Communications Server included)

Download this fully configured virtual machine of the latest release of Exchange Server 2010. Evaluate the new capabilities of Exchange Server 2010, which helps you achieve new levels of reliability and performance by delivering features that help to simplify your administration, protect your communications, and delight your users by meeting their demands for greater business mobility.
Note:
1. This trial software is intended for evaluation purposes only.
2. There is no product support for this trial. You are welcome to share your trial experience with others and to ask for advice by participating in the forums.

http://www.microsoft.com/downloads/details.aspx?familyid=53F7382A-3664-4DE3-8303-31E514D69F02&displaylang=en