Internal DOS Error Codes

^{IBM-AUSTRIA - PC-HW-Support 30 Aug 1999}

Internal DOS Error Codes

Internal DOS Error Codes
These codes are returned by internal DOS service calls and are normally only of interest to programmers. However the codes sometimes appear in DOS or application error messages (it may not always be clear whether the code is decimal or hex).

In some cases it is helpful to run the IBM-DOS QCONFIG to see DOS system resources available. If you are working on a MS-Windows installed computer you can also try MSD to see the available system resources.
Hex Decimal Meaning ------------------------------------------------------------ 01H 1 Invalid function number 02H 2 File not found 03H 3 Path not found 04H 4 Too many open files (no handles left) 05H 5 Access denied 06H 6 Invalid handle 07H 7 Memory control blocks destroyed 08H 8 Insufficient memory 09H 9 Invalid memory block address 0AH 10 Invalid environment 0BH 11 Invalid format 0CH 12 Invalid access code 0DH 13 Invalid data 0EH 14 Reserved 0FH 15 Invalid drive was specified 10H 16 Attempt to remove the current directory 11H 17 Not same device 12H 18 No more files 13H 19 Attempt to write on write-protected media 14H 20 Unknown unit 15H 21 Drive not ready 16H 22 Unknown command 17H 23 Cyclic redundancy check (CRC) -- part of diskette is bad 18H 24 Bad request structure length 19H 25 Seek error 1AH 26 Unknown media type 1BH 27 Sector not found 1CH 28 Printer out of paper 1DH 29 Write fault 1EH 30 Read fault 1FH 31 General failure 20H 32 Sharing violation 21H 33 Lock violation 22H 34 Invalid disk change 23H 35 FCB unavailable 24H 36 Sharing buffer overflow 25H 37 Reserved by DOS 5.0 26H 38 Unable to complete the operation 27H-31H 39-49 Reserved by DOS 5.0 32H 50 Network request not supported 33H 51 Remote computer not listening 34H 52 Duplicate name on network 35H 53 Network path not found 36H 54 Network busy 37H 55 Network device no longer exists 38H 56 NETBIOS command limit exceeded 39H 57 System error; NETBIOS error 3AH 58 Incorrect response from network 3BH 59 Unexpected network error 3CH 60 Incompatible remote adapter 3DH 61 Print queue full 3EH 62 Not enough space for print file 3FH 63 Print file was cancelled 40H 64 Network name was denied 41H 65 Access denied 42H 66 Network device type incorrect 43H 67 Network name not found 44H 68 Network name limit exceeded 45H 69 NETBIOS session limit exceeded 46H 70 Sharing temporarily paused 47H 71 Network request not accepted 48H 72 Print or disk redirection is paused 49H-4FH 73-79 Reserved 50H 80 File exists 51H 81 Reserved 52H 82 Cannot make directory entry 53H 83 Fail on INT 24 54H 84 Too many redirections 55H 85 Duplicate redirection 56H 86 Invalid password 57H 87 Invalid parameter 58H 88 Network data fault 59H 89 Function not supported by network 5AH 90 Required system component not installed

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