J/XFS was developed by the companies DeLaRue, IBM, NCR, Wincor Nixdorf and Sun Microsystems and is now hosted, monitored and maintained by the European Committee for Standardisation, CEN.
The aircraft was completed by Gloster's at Brockworth, with whom de Havilland had a military aircraft manufacturing agreement, fitted with three 595 hp (444 kW) Bristol Jupiter XFS radial engines.
These extensions include, among others, ODBC (called the "crowning jewel of WOSA"), TAPI, WOSA/XFS, SAPI and MAPI, and their supporting services, as well as the abstraction of access to printers, modems, and networking services, which run identically over TCP/IP, IPX/SPX, and NetBEUI.