Aberystwyth, Dyfed-based ABC Systems & Development Ltd has announced that its LAN Licenser software package now supports Windows NT Advanced Server and LAN Manager for Unix. The product is a network management tool that monitors, and if specified, enforces the number of copies of an application that can be used at any one time, both from local hard drives of personal computer workstations and from the server, says the company. According to ABC, the offering’s overall support now comprises Windows 3.1, Windows for Workgroups and Windows NT on the client side and LAN Manager for OS/2, IBM LAN Server and DEC Pathworks at the server end of the equation. The firm gave no price or availability.