# VBScript error number conversion?

• ### Question

• Hi,

I have a script returning an error as a large negative number and need to know how to convert it down to the nice small positive number that MSDN shows as the return values.

Thanks!

Tuesday, February 3, 2015 9:38 PM

### All replies

http://windowsitpro.com/web-development/parsing-error-codes

You can download the ErrorParser.hta by clicking on the link to 99854.zip near the top of the page.
• Marked as answer by Wednesday, February 4, 2015 2:31 PM
Tuesday, February 3, 2015 10:07 PM
• Thank you, I had already found that article but cannot seem to get their math to work.  I'd really like to understand how to do it manually, just in case I'm ever in a situation where I don't have a program available to do it for me.

From their article:

"To convert a signed negative integer to its unsigned equivalent, we can use formula (232 - 1) - (~ n). In this formula, n is the signed value and the tilde character (~) is the bitwise NOT operator (VBScript uses the word Not). Using this formula, the signed equivalent of -2,146,828,235 is 2,148,139,061 (800A0035 in hex form)."

It does not matter which number I plug in for n, the result is not what it should be.

Ok, nevermind.  Before I hit submit on this post I started digging through their code despite not knowing jscript and came upon something that made me realize they formatted their formula wrong.  In the article, it is written as (232 - 1) - (~ n), whereas in reality it should be ((2^32) - 1) - (~ n).  Further, they were inconsistent in what they were referring to as the signed and unsigned numbers and that was confusing me some.  That last line I quoted from their article above should have said "unsigned equivalent".

Wednesday, February 4, 2015 2:30 PM
• **Decoding Errors**

-2147220978 style numbers are 32 bit signed integers, convert to hex with calculator.

Windows errors (smallish numbers) and  COM HResults (typically, but with exceptions, start with an 8 as in 0x80040154) are defined in WinError.h, except 8007nnnn where you look up the Window error number that it contains.

As a general rule Windows errors are less than 65,535 (0xFFFF). Errors starting 0x80000001 are Component Object Model (COM) HResults. Errors starting 0xC0000001 are NTStatus results. Errors starting 0xD0000001 are also NTStatus values returned in a HResult.

- **WinError** - Returned from Windows API Calls

- **HResult** - Returned from COM calls

- **NTStatus** - Returned from kernel and some API calls also return when
encountering a kernel error.

NTStatus errors (typically but not always start with an C as in 0xC0000022) are defined in NTStatus.h.

.h files are the best source because it includes the symbolic name of the error which can give clues such as the source of the error. FormatMessage doesn't give the symbolic name only the description.

If you just want the two files I have them on my skydrive so I can reference them anywhere I go.

Note internet errors (12,000 - 12,999) are windows errors but are specified in wininet.h also available above.

There are errors defined in other .h files. But 99% are in the three above.

**Structure of HResults and NTStatus Codes**

The most significant bit in HResults, and the two most significant bits in NTStatus are set on error. Hence Hresults start 8 on error and NTStatus starts C on Error. The next 14 or 15 bits are reserved and some specify the facility - what area the error is in. This is the third and fourth number when reading hex. EG 0xnn07nnnn - An HResult facility code 7 is a normal Windows' error (returned from a COM program - hence it's returned as a HResult). Facility codes are defined in Winerror.h for HResults and NTStatus.h for NTStatus codes. They are different.

**To Decode 0x8003nnnn Errors**

HResults with facility code 3 means the HResult contains OLE Structured Storage errors (0x0 to 0xff). These are the same as Dos error codes. These don't seem to be in Windows' header files and the list of codes is at the end of this post.

**To Decode 0x8004nnnn Errors**

HResults with facility code 4 means the HResult contains OLE errors (0x0 to 0x1ff) while the rest of the range (0x200 onwards) is component specific errors so 20e from one component will have a different meaning to 20e from another component.

This is why the source of the error is extra important for errors above 0x80040200.

**To Decode 0x8007nnnn Errors**

HResults with facility code 7 means the HResult contains a Windows' error code. You have to look up the Windows' error code not the HResult.

To decode 0x80070002. The 0x means it's a hexadecimal number, the 8 means error, the first 7 means it a windows error, and the rest of the number, 2, is the actual Windows error.

To look up the error we need it in decimal format. Start Calculator (Start - All Programs - Accessories - Calculator) and choose View menu - Scientific, then View menu - Hex. Enter 2. Then View menu -  Decimal. It will say 2.

Start a Command Prompt (Start - All Programs - Accessories - Command Prompt) and type

net helpmsg 2

and it will say

The system cannot find the file specified.

or look it up in winerror.h

//
// MessageId: ERROR_FILE_NOT_FOUND
//
// MessageText:
//
// The system cannot find the file specified.
//
#define ERROR_FILE_NOT_FOUND             2L

**To Decode 0x8019nnnn Errors**

HResults with facility 0x19 are HTTP errors. Codes under 16,384 (0x4000) are the same as HTTP errors, eg HTTP status 404: The requested URL does not exist on the server is 0x80190194 (0x194 = 404). Codes 16,384 and higher are BITS specific.

**To Decode 0xDnnnnnnn Errors**

HResults starting 0xD are an HResult with a NTStatus value in it. Just cange the lead D to a C and treat as an NTStatus (Hresult = NTStatus OR 10000000).

**Dos Error Codes (for 0x8003nnnn errors)**
Code Message

01 Invalid function number
04 Too many open files (no handles left)
06 Invalid handle
07 Memory control blocks destroyed
08 Insufficient memory
0A Invalid environment
0B Invalid format
0C Invalid access mode (open mode is invalid)
0D Invalid data
0E Reserved
0F Invalid drive specified
10 Attempt to remove current directory
11 Not same device
12 No more files
13 Attempt to write on a write-protected diskette
14 Unknown unit
16 Unknown command
17 CRC error
19 Seek error
1A Unknown media type
1C Printer out of paper
1D Write fault
1F General failure
20 Sharing violation
21 Lock violation
22 Invalid disk change
23 FCB unavailable
24 Sharing buffer overflow
25 Reserved
26 Unable to complete file operation (DOS 4.x)
27-31 Reserved
32 Network request not supported
33 Remote computer not listening
34 Duplicate name on network
36 Network busy
37 Network device no longer exists
38 NetBIOS command limit exceeded
3A Incorrect network response
3B Unexpected network error
3D Print queue full
3E No space for print file
3F Print file deleted
40 Network name deleted
42 Network device type incorrect
44 Network name limit exceeded
45 NetBIOS session limit exceeded
46 Temporarily paused
47 Network request not accepted
48 Print or disk redirection is paused
49-4F Reserved
51 Reserved
52 Cannot make directory entry
53 Fail on INT 24
54 Too many redirections
55 Duplicate redirection
57 Invalid parameter
58 Network device fault
59 Function not supported by network (DOS 4.x)
5A Required system component not installed (DOS 4.x)

**Facility Codes**

**NTStatus Facilities**  **HResults Facilities**

Common status values

0x0 Null 0x0
Debugger 0x1 Rpc 0x1
Rpc_runtime 0x2 Dispatch 0x2
Rpc_stubs 0x3 Storage 0x3
Io_error_code 0x4 Itf 0x4
Various drivers 0x5-0xf Win32 0x7
Ntwin32 0x7 Windows 0x8
Ntsspi 0x9 Sspi 0x9
Terminal_server 0xa Security 0x9
Faciltiy_mui_error_code 0xb Control 0xa
Usb_error_code 0x10 Cert 0xb
Hid_error_code 0x11 Internet 0xc
Firewire_error_code 0x12 Mediaserver 0xd
Cluster_error_code 0x13 Msmq 0xe
Acpi_error_code 0x14 Setupapi 0xf
Sxs_error_code 0x15 Scard 0x10
Transaction 0x19 Complus 0x11
Commonlog 0x1a Aaf 0x12
Video 0x1b Urt 0x13
Filter_manager 0x1c Acs 0x14
Monitor 0x1d Dplay 0x15
Graphics_kernel 0x1e Umi 0x16
Driver_framework 0x20 Sxs 0x17
Fve_error_code 0x21 Windows_ce 0x18
Fwp_error_code 0x22 Http 0x19
Ndis_error_code 0x23 Usermode_commonlog 0x1a
Hypervisor 0x35 Usermode_filter_manager 0x1f
Ipsec 0x36 Backgroundcopy 0x20
Maximum_value 0x37 Configuration 0x21
State_management 0x22
Windowsupdate 0x24
Directoryservice 0x25
Graphics 0x26
Shell 0x27
Tpm_services 0x28
Tpm_software 0x29
Pla 0x30
Fve 0x31
Fwp 0x32
Winrm 0x33
Ndis 0x34
Usermode_hypervisor 0x35
Cmi 0x36
Windows_defender 0x50

David Candy

Sunday, February 22, 2015 7:14 PM