Hi, now I think it's a good idea to start an own thread for this project. First for your information: SymbOS is currently an operating system for the Amstrad CPC computers: http://www.symbos.de SymbOS provides true multitasking and a complete Windows XX like GUI. It supports up to 576KB Ram for data and code execution (each application can address up to 63K in one piece) and includes a FAT12/16/32