Error Action ---------------- Ignore The MS-DOS function call returns to the application program as if the function had completed successfully. For example, if the program is trying to read from the disk, MS-DOS tells the program that all is well. This can result in corrupted data in your disk file or in data returned to your application. Retry The critical error handler signals MS-DOS to reissue the last function call made to the device that caused the critical error. Abort The current application is terminated immediately. Unwritten disk buffers are NOT written to disk, the directory information is not updated, and modified interrupt vectors are not reset. Choosing this option can leave the system in a very unstable state. Fail This causes MS-DOS to return to the application software> with an error condition. In programming terms, the carry flag is set upon exit from the INT 21h DOS function call. This allows the application program to handle the error itself and take appropriate action, rather than letting MS-DOS do it.The MS-DOS kernel and device drivers do not mark a FAT entry as being badwhen a critical error occurs, or at any other time. This task must be doneby a separate utility. The RECOVER utility provided with MS-DOS can dothis, but only if the bad sector exists within a file's allocated clusters-- free bad clusters are not checked by RECOVER. The FORMAT utility istypically the best solution, since it scans all areas of the disk for badsectors. The disadvantage is that FORMAT also destroys any data on thedrive.
Article ID: 67586 - Last Review: 10/26/2013 12:22:00 - Revision: 3.0