I have the same problem.
Win 7 x64
WinDDk 7600.16385.1
VS 2008 team developer edition.
visualDDK 1.5 installer comes to the screen where DDK path or WDK path istn’t defined,
setting the path by clicking the […] does not help.
But if I create a variable called WDKPATH and point it to the same folder as tryed with the browse function,
the installer is happy, and does not complain about the missing ntddk.h in none existing subfolders.
It build win32 projects ok.
But not x64 project, apparently the new ddk won’t accept AMD64 as an option, but needs x64 instead.
Hope this helps.
Regards
Le Quark
‘Stig’