The Office for Metropolitan Architecture (OMA) was established by architects Rem Koolhaas and Elia Zenghelis in 1975. The firm has offices in New York, Beijing, Rotterdam, and Hong Kong, and is working on client projects in 45 countries. OMA relies on IT partner Asapnet Network Solutions to protect its valuable data and deliver applications to its 325 employees based around the world. Microsoft Partner Asapnet Network Solutions recently decided to upgrade the firm's server operating system to take advantage of Windows Server 2012 Datacenter and tools for management and virtualisation. Together with Microsoft System Center Configuration Manager and the Virtual Machine Manager component of Microsoft System Center 2012, the technology supports a three-person IT team to provide staff with seamless access to applications.