http://blogs.msdn.com/b/jmstall/archive/2007/10/12/how-to-tell-if-a-function-is-managed-code.aspxThis is a moot point for pure C# apps, but what if you're writing in MC++ (or some other 'mixed' language) and you want to know if a function is getting compiled as managed or native code? You can try and inspect the source and infer from the languageen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)http://blogs.msdn.com/b/jmstall/archive/2007/10/12/how-to-tell-if-a-function-is-managed-code.aspx#5421848Fri, 12 Oct 2007 15:44:45 GMT91d46819-8472-40ad-a661-2c78acb4018c:5421848Russell Osterlund<p>Alternatively, if you know that the code has not been ngen'd, you can examine the virtual address of the first instruction. &nbsp;In your first sample, the address will not be located in any loaded module, but in memory that has been allocated by the JIT compiler (presumably this is why VS shows a zero offset since the address could possibly change with a later re-JIT). &nbsp;In the latter sample, the virtual address will be found inside the module's range probably in the .text section. &nbsp;If the code has been ngen'd, you might then be able to fall back on the heuristics you give.</p><div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=5421848" width="1" height="1">