ndxname = 'X' + SYS(3)
INDEX ON [fldname] TO &ndxname

Look familiar? This is how we FP'ers have created a new filename since the beginning of time. And I am having a 'File in use by another' error come up on my client's app, sometimes. Actually not sometimes, but always on my client's PC's which run Win98, the error does not happen on the one PC in the store that runs Win95. However, it does not occur on my development PC, which runs Win98 too. It does NOT make sense to me that this is the operative difference but I have nothing else to go on. Any ideas?