I apologize, but I'm not sure what you mean by "ntsd2.4". Could you please provide more context or clarify your question?

"ntsd" typically refers to the NT Kernel Debugger, a debugging tool in Windows operating systems. However, there isn't a version 2.4 that I'm aware of.

If you're asking about this tool or related to debugging/development on Windows, I'd be happy to help explain further. If it's something else entirely, please provide more details so I can assist you better.