DEC HEX Description 
00 00h No error 
01 01h Function number invalid 
02 02h File not found 
03 03h Path not found 
04 04h Too many open files (no file handles available) 
05 05h Access denied 
06 06h Invalid handle 
07 07h Memory control block destroyed 
08 08h Insufficient memory 
09 09h Memory block address invalid 
10 0Ah Environment invalid (usually >32k in length) 
11 0Bh Format invalid 
12 0Ch Access code invalid 
13 0Dh Data invalid 
14 0Eh (reserved) 
15 0Fh Invalid drive 
16 10h Attempted to remove current directory 
17 11h Not same device 
18 12h No more files 
19 13h Disk write-protected 
20 14h Unknown unit 
21 15h Drive not ready 
22 16h Unknown command 
23 17h Data error (CRC) 
24 18h Bad request structure length 
25 19h Seek error 
26 1Ah Unknown media type (non-DOS disk) 
27 1Bh Sector not found 
28 1Ch Printer out of paper 
29 1Dh Write fault 
30 1Eh Read fault 
31 1Fh General failure 
32 20h Sharing violation 
33 21h Lock violation 
34 22h Disk change invalid 
35 23h FCB unavailable 
36 24h Sharing buffer invalid 
37 25h (DOS 4+) code page mismatch 
38 26h (DOS 4+) cannot complete file operation (out of input) 
39 27h (DOS 4+) insufficient disk space 
40 28h (reserved) 
41 29h (reserved) 
42 2Ah (reserved) 
43 2Bh (reserved) 
44 2Ch (reserved) 
45 2Dh (reserved) 
46 2Eh (reserved) 
47 2Fh (reserved) 
48 30h (reserved) 
49 31h (reserved) 
50 32h Network request not supported 
51 33h Remote computer not listening 
52 34h Duplicate name on network 
53 35h Network name not found 
54 36h Network busy 
55 37h Network device no longer exists 
56 38h Network BIOS command limit exceeded 
57 39h Network adapter hardware error 
58 3Ah Incorrect response from network 
59 3Bh Unexpected network error 
60 3Ch Incompatible remote adapter 
61 3Dh Print queue full 
62 3Eh Queue not full 
63 3Fh Not enough space to print file 
64 40h Network name was deleted 
65 41h Network access denied 
66 42h Network device type incorrect 
67 43h Network name not found 
68 44h Network name limit exceeded 
69 45h Network BIOS session limit exceeded 
70 46h Temporarily paused 
71 47h Network request not accepted 
72 48h Network print / disk redirection paused 
73 49h (LANtastic) invalid network version 
74 4Ah (LANtastic) account expired 
75 4Bh (LANtastic) password expired 
76 4Ch (LANtastic) login attempted invalid at this time 
77 4Dh (LANtastic) disk limit exceed on network node 
78 4Eh (LANtastic) not logged in to network node 
79 4Fh (reserved) 
80 50h File exists 
81 51h (reserved) 
82 52h Cannot make directory 
83 53h Fail on INT 24h 
84 54h (DOS 3.3+) too many redirections 
85 55h (DOS 3.3+) duplicate redirection 
86 56h (DOS 3.3+) invalid password 
87 57h (DOS 3.3+) invalid parameter 
88 58h (DOS 3.3+) network write fault 
89 59h (DOS 4+) function not supported on network 
90 5Ah (DOS 4+) required system component not installed