>>
>>How big is the files you are trying to copy, and how slow when you copy using Explorer ? Is the speed unacceptable ?
>
>It takes about 2 hours to do a full copy. The files range from about 7K up to around 100K. The API call is going to work OK; copying from VFP was taking almost 4 hours. Doing the copy from DOS was still a lot faster, but for now, 2 hours is OK.

hmm...that long. I asked you this because later on I might want to experience something that is mentioned by AMD tech docs (using SSE2 instruction). It show something to boost the performance of AMD Athlon / P4 to the max. Thanks for the info