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DbgHelp Versions

The DbgHelp library is implemented by DbgHelp.dll. Although this DLL is included in all supported versions of Windows, it is rarely the most current version of DbgHelp available. Furthermore, the version of DbgHelp that ships in Windows has reduced functionality from the other releases-- specifically, it lacks support for Symbol Server and Source Server.

The most current versions of DbgHelp.dll, SymSrv.dll, and SrcSrv.dll are available as a part of the Debugging Tools For Windows package. The redistribution policies for these included DLLs were specifically designed to make it as easy as possible for people to include these files in their own packages and releases.

Caution Users should never attempt to install the Debugging Tools For Windows versions of DbgHelp.dll into the Windows system directories because they are untested in this scenario and likely to destabilize the system. There are separate X64 and X86 versions of the debugging package and both are necessary for people interested in supporting both platforms.

To obtain the latest version of DbgHelp.dll, go to http://www.microsoft.com/whdc/devtools/debugging/default.mspx and download Debugging Tools for Windows. Refer to Calling the DbgHelp Library for information on proper installation.

Note The DbgHelp.dll file that ships in Windows is not redistributable.

Many versions of DbgHelp include additional functionality. To ensure that the correct version of DbgHelp is available for your application, review the Requirements information in the specific API reference documentation.

Supported Versions

The following is a summary of the released versions of DbgHelp, in reverse chronological order.

Version	Date stamp	Distribution Vehicle
6.12	02/01/2010	Debugging Tools for Windows 6.12
6.11	02/25/2009	Debugging Tools for Windows 6.11
6.10	09/08/2008	Debugging Tools for Windows 6.10
6.9	03/20/2008	Debugging Tools for Windows 6.9
6.8	10/07/2007	Debugging Tools for Windows 6.8
6.6	7/10/2006	Debugging Tools for Windows 6.6
6.5	5/24/2005	Debugging Tools for Windows 6.5
6.4	1/10/2005	Debugging Tools for Windows 6.4
6.3	5/24/2004	Debugging Tools for Windows 6.3
6.2	7/11/2003	Debugging Tools for Windows 6.2
6.1		Debugging Tools for Windows 6.1
6.0		Debugging Tools for Windows 6.0
4.0		Debugging Tools for Windows 4.0
3.0		Debugging Tools for Windows 3.0
2.0		Debugging Tools for Windows 2.0
1.0		Debugging Tools for Windows 1.0

Version 6.8

The following functions were added to DbgHelp version 6.8.

EnumerateLoadedModulesEx

SymAddSourceStream

SymEnumTypesByName

SymGetOmaps

SymGetSourceVarFromToken

SymSetScopeFromAddr

SymSetScopeFromIndex

Version 6.6

The following functions were added to DbgHelp version 6.6.

SymFindDebugInfoFile

SymFindExecutableImage

SymSrvGetFileIndexInfo

Version 6.5

The following function was added to DbgHelp version 6.5.

SymRefreshModuleList

The following structures were added to DbgHelp version 6.5.

MINIDUMP_HANDLE_DESCRIPTOR_2

MINIDUMP_HANDLE_OBJECT_INFORMATION

MINIDUMP_HANDLE_OPERATION_LIST

MINIDUMP_IO_CALLBACK

MINIDUMP_MISC_INFO_2

MINIDUMP_READ_MEMORY_FAILURE_CALLBACK

Version 6.4

The following function was added to DbgHelp version 6.4.

SymEnumSourceLines

Version 6.3

DbgHelp version 6.3 adds Unicode support to many of the existing functions. To enable this support, define DBGHELP_TRANSLATE_TCHAR at the top of each source file or when you compile your application.

The following functions were added to DbgHelp version 6.3.

SymEnumProcesses

SymGetSymbolFile

SymGetTypeInfoEx

SymSrvDeltaName

SymSrvGetFileIndexes

SymSrvGetFileIndexString

SymSrvGetSupplement

SymSrvIsStore

SymSrvStoreFile

SymSrvStoreSupplement

The following structures were added to DbgHelp version 6.3.