tools/ldmp.exe doesn't work on Vista+

_From [bruen...@google.com](https://code.google.com/u/109494838902877177630/) on February 23, 2011 10:08:27_

this was PR 215425/case 10990

xref issue #118 (64-bit ldmp)

On vista we need to use NtCreateThreadEx instead of NtCreateThread.
Unfortunately, NtCreateThreadEx does all sorts of annoying things we don't
want (like allocate a stack, hide direct access to the context state etc.).
So will prob need to:

CreateThreadEx
Remote Free kernel allocated stack
SetContext

on Vista and see if that works (note that it only matters what platform
you're running the ldmp tool on, not what platform the .ldmp was generated
on).

_Original issue: http://code.google.com/p/dynamorio/issues/detail?id=397_