Hi! Willi has noticed a problem with the 4 GB file size limit: If you use COPY x + y z style commands to concatenate files, the FreeDOS kernel will fail to notice 32-bit offset overflows. So your target file grows to 4 GB. It does not grow further. BUT extra data will end up at the intended offset MODULO 4 GB. Instead, the kernel should reject the attempt to write > 4 GB. Regards, Eric _______________________________________________ Freedos-devel mailing list Freedos-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-devel