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Debugging Techniques

Use Debug DLLs

CANLIB SDK is shipped with a number of debug DLLs and drivers; look in the …\sys\debug directory of the CANLIB SDK. The debug DLLs will send information to the debugger (using the Win32 OutputDebugString API) and might help you in trouble-shooting your application or a particular installation.

To use the debug DLLs or drivers, you have to copy them yourself to the Windows system directory, overwriting the existing DLL or driver. Then remove and reinsert the hardware or restart the computer.

Note
Never attempt to deploy the debug DLLs or drivers with your application. End users are likely not to appreciate it.

To see the debug information, you can use the excellent dbgview.exe program freely available from http://technet.microsoft.com/sysinternals.

Troubleshoot hardware problems

If your software doesn't work, although you think it should, check the following things: