how to make startxwin.bat "just like" startx?

[Tom Roche]

Is there a way to have startxwin.bat behave "just like" startx? I.e.
to have the XFree86 window resulting from running startxwin.bat be
just like the one resulting from running cygwin.bat, and then startx?

I'd like to not maintain two sets of configuration files, so I'd like
to be able to just work with startx, e.g. to have startxwin.bat invoke
it somehow. Can that be done? if so, how?