Hello Phil,
tried some add. investigation on that. Finally it's working for me.
My problem was related to DDK 3790.1830 + KMDF 1.1.
I did 2 things (unsuccessfully tried a lot of C pre-processing magic due to the strange #defines in stl.h):
1. set-var def_cpp_include_path_re
inc|include|c\+\+|g\+\+-2|g\+\+-3
but I'm not really sure if this really matters. (since v11.02 you can do this in the file ext. setup -> options dialog)
However, 'inc' is the std. include dir of DDK/WDK and the common default is 'include'.
2. in 'Tag files' dialog -> 'Auto tag' I checked the setup for 'DDK 3790.1830' and did a rebuild of it.
After that all necessary ext.less stl-includes were tagged (unfortunately I didn't check the prev. state)
Well, since that time I've got full symbol support for the std:: stuff
I hope this helps you out of your troubles.
HS2
PS: I run a backup script for my Slick config on regular basis.
Loosing my customization/config stuff would be a DISASTER for me...