This section describes extension commands that are frequently used during both user-mode and kernel-mode debugging.
The debugger automatically loads the proper version of these extension commands. Unless you have manually loaded a different version, you do not have to keep track of the DLL versions that are being used. For more information about the default module search order, see Using Debugger Extension Commands. For more information about how to load extension modules, see Loading Debugger Extension DLLs.
Each extension command reference topics lists the DLLs that expose that command. Use the following rules to determine the proper directory to load this extension DLL from:
If your target computer is running Microsoft Windows XP or a later version of Windows, use winxp\kdexts.dll, winxp\ntsdexts.dll, winxp\exts.dll, winext\ext.dll, or dbghelp.dll.
If your target computer is running the free build of Windows 2000, use w2kfre\kdextx86.dll, w2kfre\ntsdexts.dll, winext\ext.dll, or dbghelp.dll.
If your target computer is running the checked build of Windows 2000, use w2kchk\kdextx86.dll, w2kchk\ntsdexts.dll, winext\ext.dll, or dbghelp.dll.