Your WinCmes program is limited to 80 total char. per line. This includes spaces. If you open the DOS editor it will show you what the length of each line is. If you have any that have 81 or above in them the program will give you an error. This includes global variables that do not appear to be longer than 80, however the values stored inside the global/string variable would make you go over the max limit of 80. I hope this helps