  0 no error
  1 function not supported
  2 file not found
  3 path not found
  4 too many open files
  5 access denied
  6 handle invalid
  7 MCBs destroyed
  8 not enough memory
  9 memory block address invalid
 10 environment invalid
 11 format invalid
 12 access code invalid
 13 data invalid
 14 reserved-0Eh
 15 disk drive invalid
 16 cannot remove current directory
 17 not same device
 18 no more files
 19 disk write protected
 20 unknown unit
 21 drive not ready
 22 unknown command
 23 data error (CRC)
 24 bad request structure length
 25 seek error
 26 unknown medium type
 27 sector not found
 28 printer out of paper
 29 write fault
 30 read fault
 31 general failure
 32 sharing violation
 33 lock violation
 34 disk change invalid
 35 FCB unavailable
 36 sharing buffer overflow
 37 reserved-25h
 38 reserved-26h
 39 reserved-27h
 40 reserved-28h
 41 reserved-29h
 42 reserved-2Ah
 43 reserved-2Bh
 44 reserved-2Ch
 45 reserved-2Dh
 46 reserved-2Eh
 47 reserved-2Fh
 48 reserved-30h
 49 reserved-31h
 50 network request not supported
 51 remote computer not listening
 52 duplicate name on network
 53 network name not found
 54 network busy
 55 network device no longer exists
 56 NETBIOS command limit exceeded
 57 network adapter hardware error
 58 incorrect response from network
 59 unexpected network error
 60 incompatible remote adapter
 61 print queue full
 62 queue not full
 63 not enough space to print file
 64 network name deleted
 65 access denied
 66 network device type incorrect
 67 network name not found
 68 network name limit exceeded
 69 NETBIOS session limit exceeded
 70 temporarily paused
 71 network request not accepted
 72 print/disk redirection paused
 73 reserved-49h
 74 reserved-4Ah
 75 reserved-4Bh
 76 reserved-4Ch
 77 reserved-4Dh
 78 reserved-4Eh
 79 reserved-4Fh
 80 file exists
 81 reserved-51h
 82 cannot make
 83 fail on INT24
 84 out of structures
 85 already assigned
 86 invalid password
 87 invalid parameter
 88 network write fault
