all i know - as someone interested in using IE to do stuff - that maybe it wasnt meant to do - but did FLAWLESSLY - well all that was usually interface specific stuff and its mostly been removed.
If there was another browser that offered it - i gotta say for first time in my life - id look at switching
* I talked alot with Ben Slivka during the ie3/4 years and chris jones in ie5 years
this stuff was really developer empowering stuff
- but ya i guess "goofs" could use it for bad purposes..
Still think there could have been other ways rather than removing developer features
and i also do think your top brass wanted this stuff gone - not so much for security - but so that - say Google couldnt make its web site - a full screen interface - covering Win desktop