To be able to install and run the Exchange Best Practices Analyzer v2.8 on a Server 2008, Vista and Windows 7 you need the following requirements

1. Microsoft .NET Framework Version 1.1
2. Common HTTP Features
   1. From Command Prompt run Servermanagercmd.exe -i Web-Common-Http
   2. If you later need to remove run the command Servermanagercmd.exe -r Web-Common-Http
3. When installed, make sure to run as administrator