Data Execution Prevention (or equivalent) on Windows 2000

On Windows XP, there's a setting (under Control Panel -> System -> Advanced -> Performance) that lets you turn on Data Execution Prevention for all applications. This seems to me like a good way to prevent all sorts of buffer overflows.

However, in Windows 2000, this option isn't present. And judging from the Wikipedia page on DEP, pre-XP versions of Windows simply didn't have it.

Is there any sort of third-party software that can let me make use of my hardware's NX bit on Windows 2000? Or is this stuff too low-level for anything like that to work?