Could anyone explain why the following code runs in .1 sec on a Win98 machine and 1.2 secs on an NT 4 machine?

lnStart = seconds()
lnDirOK = adir(laTemp, "\\charlton1\depts\general\MF Log\", "D") > 0
wait wind str( seconds() - lnStart, 6, 2 )

All I wanted to do is check to make sure that the directory existed. Both machines are the same spec and sit next door to each other. All NT machines around the building that I have tested this on display a much longer response time than the 95 & 98 machines.

For info - it's VFP5 and the directory has 297 files in it.

Many thanks

Jason