Thanks for pointing out my omission!
Actually it is : "COPY C:\Program Files\BioClinic\*.* F:\" ,where the "F:"
being my USB memory stick.
I thought may be the Vista came with no "COPY" command available and was
looking for Vista CD but it was not in the box.
But you have a good suggestion to try with XCOPY and I will do that when I
get to the laptop next time because it's not with me now.
Thanks much, Pete