Can't get Windows registry to work for resources

[Steve Biederman]

I'm trying to set values in the Windows registry to do the same things that
one would do
in the .Xdefaults file in a X Window system.  To remove any oddities which
may be happenning
because of font or color names, for my test case I'm trying to set a
resource whose value is neither
a font or a color.  Just to test, I'm setting:
    HKEY_CURRENT_USER/Software/GNU/Emacs/Emacs.scrollBarWidth to the REG_SZ
value 100
Nothing happens.  What am I missing?