I am using keil 3 since last one and half year but now when i am working on a project of TCP/IP n getting an Error 267 funcdef require ANSI-style prototype How do i rectify it? Also when i try to load big program kiel show an error that it can not save program in data segment plz highlight me on this issue. And plz help me how to solve other problem of this kind bec in ur manual u have just explained the error and given any solution