Hello to all, For my project, I use a my own asm file STARTUP.A51. After having linked all the files of the project, a warning message appears 'UNCALLED SEGMENT ?C_INITSEG'. Or I do not integrate any modules which contain this code segment. Apparently, it is incorporated by the linker itself at the linking run-time. I look for hints to remove this message ? Best regards. Jean-Luc.