How do I generate minidumps for crash diagnosis?

Creating Minidumps for Crash Diagnosis

Question:

How do you generate minidumps for a process when it crashes?

System-Generated Minidumps:

No, the system does not automatically create minidumps for user processes that crash. You must configure the system to generate minidumps when a process crashes. To do this:

• Go to Control Panel > System
• Click on "Advanced" tab
• Under "Startup and Recovery," click on "Settings"
• Select "Create a dump file"
• Configure the dump type, such as "small memory dump" or "full memory dump"

Programmatic Minidumps:

Yes, you can create minidumps programmatically using the dbghelp.dll library. The function MiniDumpWriteDump() can be used to create a minidump for a specified process at the time of a crash or error.

Effectiveness of Minidumps:

Minidumps provide valuable information for investigating crashes. They contain a snapshot of the application state at the time of the crash, including stack traces, variable values, and register contents. This information can help developers identify the source of the crash and make corrections to prevent future crashes.

Additional Notes:

• It is recommended to use a debugger or profiling tool to diagnose crashes when possible, as they provide more detailed information than minidumps.
• If your application is highly optimized, minidumps may not provide sufficient information to diagnose all types of crashes.
• Consider upgrading from VC6 to a more recent version of Microsoft Visual Studio to improve debugging capabilities and performance.

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