分发 DbgHelp.DLL

Question

My application relies on DBGHELP.DLL functions, especially the information about the loaded DLLs by the target processes. However, many times it fails on Windows versions lower to Vista (you know XP is still there!). Looked around and found that installed/present DBGHELP.DLL on the target system is old, and doesn't support many new features (For example, few flags of MiniDumpWriteDump are not supported in older versions).

This page mentions about the DbgHelp versions and vaguely mentions about distributing the DBGHELP.DLL (and other DLLs). DLLs shipped with OS must not be shipped (agreed, and no issues about it). Then it says latest DLL out of "Debugging Tools For Windows" should be shipped.

My question is : Which version can be/should be shipped with the application? Pick the latest one and assume it will work in lowest OS (XP)? Of course, I won't ship Debug version of this DLL. The " DbgHelp versions " page doesn't mention about supportability for specific OSes - so we may assume that even latest version will be supported on XP.

I would put the DLL in the application directory itself, and may conditionally call functions like SetDllDirectory . If needed, the DLL itself and/or any functions of DBGHELP.DLL may be loaded dynamically.

Related:

• SymInitialize failed with error 2147483661
• https://groups.google.com/forum/#!topic/microsoft.public.windbg/9V6sbsu8_js

Answer 1

One of the missing file error occurs as the file is deleted or corrupted. There is a different approach to its fix on the different windows versions. If you certainly need to fix dbghelp.dll missing error you need to install Microsoft Direct X follow the step-by-step method from installation of it.