Thanks!  That works.

BTW, is there any way to tell what OS that Ruby is currently running on?
(as opposed to what it was built on).  ie. can I tell if the box I'm
running on is WinNT, Win98, Win2000 or Win95?  The methods presented only
show where it was built (which is of course what I asked for) and in the
case of the various Win's the return string will always be the same.

I suppose that after I've determined that it is some kind of Windows
platfrom I could then run `system ver` and check the result.

Phil