Lan Projekt has received a request to increase the level of protection in single-server AD Windows 2008 Server Environment. Suggested solution introduces second domain controller based on Windows 2012 Standard Server. As an additional feature Microsodft based DFS technology provides replication of selected data files crutial to run the business. Using DFS technology provides extra fail-over protection in case one of the servers is out of service. The Customer deals with graphics proccessing.