Is this a minor bug in RGUI.EXE?

Prof Brian D Ripley <ripley at stats.ox.ac.uk> writes:

We have had two or three reports of such things, on isolated machines
and different characters (UK pound sign, which this mailer will not accept,
was one).  That's Windows for you.

Your writing "That's Windows for you" gave me pause for thought. I
checked a bit further and found that it is MSVCRT.DLL that is raising an
exception and not RGUI.EXE. Replacing this library with a previous
version gets rid of the problem. Of course, it might alter the function
of something else but that's Windows for you!

This would explain the isolated reports. Perhaps the solution is to
static compile RGUI.EXE ... perhaps it already is in the less obsolete
versions.