Mobile Device Manager(MDM) is a Microsoft technology that helps Windows Mobile 6.1 devices work within the IT infrastructure of a company as trusted and managed members of the enterprise. 

MDM consists of the following four main system components: MDM Device Management Server, MDM Enrollment Server, MDM Gateway Server, and Microsoft SQL Server 2005 databases. The SQL Server databases must be installed separately.

These components work with key IT services to give managed devices access to selected business data. The primary IT services that work with MDM are the following: Active Directory Domain Service, MDM software distribution, certificate services, and line-of-business application servers, such as Microsoft Exchange.

System Requirements:
• Windows Server 2003 x64 Edition with SP2
• Member of the Active Directory domain
• Internet Information Services (IIS) 6.0 and World Wide Web Publishing Service
• .NET Framework 2.0 SP1 or later
• Windows Server Update Services (WSUS) 3.0 SP1
• Microsoft Report Viewer Redistributable 2005 (optional)
• Microsoft SQL Server 2005 Standard Edition Service Pack 2 (SP2) or a later version
• Full product version of SQL Server must be installed; Express Edition is not supported
• Microsoft SQL Server 2008 is not supported
• Install the English or local language version of SQL Server
• For better performance in a production environment, do not install SQL Server on a server that is running MDM

MDM 2008 SP1 does not support installation of MDM server roles on Windows Server 2008. Installation of MDM server roles is supported on Windows Server 2003 only.