[ESS] help("foo") opens web browser but ?foo doesn't

[Henrik Singmann]

Hi all,

I know that similar questions have come up from time to time, but the solutions didn't fit my problem.

I want ESS to display help pages always in the web browser and managed to do so partly thanks to SO (http://stackoverflow.com/q/2413163/289572) via
  '(inferior-ess-r-help-command ".help.ESS(\"%s\", help_type=\"html\")")
in my custom variables in my .emacs

However, the browser only opens for help("foo") but not ?foo.

Any thoughts on how to open help in browser also for ?foo (or better always)?

Many thanks,
Henrik

-- 
Dipl. Psych. Henrik Singmann
PhD Student
Albert-Ludwigs-Universität Freiburg, Germany
http://www.psychologie.uni-freiburg.de/Members/singmann