; Extended-error codes (DOS 2.x: 00h-12h)
00h No error
01h Function number invalid
02h File not found
03h Path not found
04h Too many open files (no handles available)
05h Access denied
06h Invalid handle
07h Memory control block destroyed
08h Insufficient memory
09h Memory block address invalid
0Ah Environment invalid (usually >32K in length)
0Bh Format invalid
0Ch Access code invalid
0Dh Data invalid
0Eh Reserved
0Fh Invalid drive
10h Attempted to remove current directory
11h Not same device
12h No more files
13h Disk write-protected
14h Unknown unit
15h Drive not ready
16h Unknown command
17h Data error (CRC)
18h Bad request structure length
19h Seek error
1Ah Unknown media type (non-DOS disk)
1Bh Sector not found
1Ch Printer out of paper
1Dh Write fault
1Eh Read fault
1Fh General failure
20h Sharing violation
21h Lock violation
22h Disk change invalid (ES:DI -> MID structure)
23h FCB unavailable
24h Sharing buffer overflow
25h Code page mismatch (DOS 4+)
26h Cannot complete file operation (out of input) (DOS 4+)
27h Insufficient disk space (DOS 4+)
28h-31h Reserved
32h Network request not supported
33h Remote computer not listening
34h Duplicate name on network
35h Network name not found
36h Network busy
37h Network device no longer exists
38h Network BIOS command limit exceeded
39h Network adapter hardware error
3Ah Incorrect response from network
3Bh Unexpected network error
3Ch Incompatible remote adapter
3Dh Print queue full
3Eh Queue not full
3Fh Not enough space to print file
40h Network name was deleted
41h Network: Access denied
42h Network device type incorrect
43h Network name not found
44h Network name limit exceeded
45h Network BIOS session limit exceeded
46h Temporarily paused
47h Network request not accepted
48h Network print/disk redirection paused
49h Network software not installed
Invalid network version (LANtastic)
4Ah Unexpected adapter close
Account expired (LANtastic)
4Bh Password expired (LANtastic)
4Ch Login attempt invalid at this time (LANtastic)
4Dh Disk limit exceeded on network node (LANtastic)
4Eh Not logged in to network node (LANtastic)
4Fh Reserved
50h File exists
51h Reserved
52h Cannot make directory
53h Fail on INT 24h
54h Too many redirections (DOS 3.3+)
55h Duplicate redirection (DOS 3.3+)
56h Invalid password (DOS 3.3+)
57h Invalid parameter (DOS 3.3+)
58h Network write fault (DOS 3.3+)
59h Function not supported on network (DOS 4+)
5Ah Required system component not installed (DOS 4+)
64h Unknown error (MSCDEX)
65h Not ready (MSCDEX)
66h EMS memory no longer valid (MSCDEX)
67h Not High Sierra or ISO-9660 format (MSCDEX)
68h Door open (MSCDEX)