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Format of European MS-DOS 4.0 hard error information packet

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Offset Size Description

00h

WORD

contents of AX at system entry

02h

WORD

Process ID which encountered error

04h

WORD

contents of AX at time of error

06h

BYTE

error type
00h = physical I/O error
01h = disk change request
02h = file sharing violation
03h = FCB problem
04h = file locking violation
05h = bad FAT
06h = network detected error

07h

BYTE

INT 24 error code

08h

WORD

extended error code (see #01680)

0Ah

DWORD

pointer to associated device