Dec 172017
 
MS Dos extended error listing.
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Extended Error Code Information


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PRODUCT NAME: Microsoft Disk Operating System

SOURCE: Microsoft Corporation


Summary:

The following MS-DOS function provides detailed extended error
information concerning a failed Interrupt 21H function call:

Interrupt 21H Function 59H - Get Extended Error Information

This routine returns codes named as the DOS extended error code, error
class, recommended action, and error locus.

- The extended error code identifies exactly what occurred.

- The error class provides more information identifying the error
based on the internal workings of the operating system.

- The recommended action codes are suggestions meant to help but are
not solutions.

- The error locus codes attempt to provide information about the origin
of the error or what device caused the error.

This information applies to MS-DOS versions 3.2, 3.21, 3.3, 3.3a, 4.0,
4.01 and 5.0.

More Information:

The MS-DOS function returns the four codes in the following registers:

AX Extended error code
BH Error class
BL Recommended action
CH Error locus

Extended Error Codes
--------------------

Hex Decimal Meaning
--- ------- -------

01 01 Function number invalid
02 02 File not found
03 03 Path not found
04 04 Too many open files
05 05 Access denied
06 06 Handle invalid
07 07 Memory control blocks destroyed
08 08 Insufficient memory
09 09 Memory block address invalid
0A 10 Environment invalid
0B 11 Format invalid
0C 12 Access code invalid
0D 13 Data invalid
0E 14 Unknown unit
0F 15 Disk drive invalid
10 16 Attempted to remove current directory
11 17 Not same device
12 18 No more files
13 19 Write-protected disk
14 20 Unknown unit
15 21 Drive not ready
16 22 Unknown command
17 23 Data error (CRC)
18 24 Bad request-structure length
19 25 Seek error
1A 26 Unknown media type
1B 27 Sector not found
1C 28 Printer out of paper
1D 29 Write fault
1E 30 Read fault
1F 31 General failure
20 32 Sharing violation
21 33 File-lock violation
22 34 Disk change invalid
23 35 FCB unavailable
24 36 Sharing buffer exceeded
25-31 37-49 Reserved
32 50 Unsupported network request
33 51 Remote machine not listening
34 52 Duplicate name on network
35 53 Network name not found
36 54 Network busy
37 55 Device no longer exists on network
38 56 NetBIOS command limit exceeded
39 57 Error in network adapter hardware
3A 58 Incorrect response from network
3B 59 Unexpected network error
3C 60 Remote adapter incompatible
3D 61 Printer queue full
3E 62 Not enough room for print file
3F 63 Print file was deleted
40 64 Network name deleted
41 65 Network access denied
42 66 Incorrect network device type
43 67 Network name not found
44 68 Network name limit exceeded
45 69 NetBIOS session limit exceeded
46 70 Temporary pause
47 71 Network request not accepted
48 72 Print or disk redirection paused
49-4F 73-79 Reserved
50 80 File already exists
51 81 Reserved
52 82 Cannot make directory
53 83 Fail on Int 24H (critical error handler)
54 84 Too many redirections
55 85 Duplicate redirection
56 86 Invalid password
57 87 Invalid parameter
58 88 Net write fault

Error Class Codes
-----------------

Class Meaning
----- -------

1 Out of resource
2 Temporary situation
3 Authorization
4 Internal
5 Hardware failure
6 System failure
7 Application program error
8 Not found

9 Bad format
10 Locked
11 Media
12 Already exist
13 Unknown

Recommended Action Codes
------------------------

1 Retry. If not cleared in reasonable number of attempts, prompt
user to Abort or Ignore.

2 Delay then retry. If not cleared in reasonable number of
attempts, prompt user to Abort or Ignore.

3 Get corrected information from user (bad filename or disk
drive).

4 Abort application with cleanup.

5 Abort application without cleanup (cleanup may increase
problems).

6 Ignore error.

7 Prompt user to correct error and then retry.

Error Locus Codes
-----------------

1 Unknown
2 Block device (disk or disk emulator)
3 Network
4 Serial device
5 Memory related

An application program may use the MS-DOS Interrupt 21H Function 59H
call when a function call fails during the execution of the
application. The program may take a number of possible different
actions as a result, which could include retrying the function,
aborting, or just displaying the DOS extended error code. For example,
an application might display the following after a failed interrupt
call:

DOS extended error 27 /11 /4 /2

This represents:

Extended error 27 Sector not found
Error class 11 Media
Recommended action 4 Abort application with cleanup
Error locus 2 Block device (disk or disk emulator)
\\ PRODMNE=O_MSDOS MESSAGES
\\ MS-DOS
\\ 3.20 3.21 3.30 3.30A 4.00 4.01 5.00
\\ PROD=MS-DOS


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