If you're going to test you'll need to do some manual actions such as manually starting a test download at the downloader end and/or creating a test EXE (or use the VFP IDE) at the host end to try locking.
It might be easier to get the host to copy the files to another folder, and then get the downloader to download the copy rather than the production file(s). That way you don't have to worry about contention.
>How can I know in the host side that other office start to download?
>
>>>The Ftp is read only for the downloader side.
>>>I cannot lock it.
>>
>>I meant trying to lock on the host side, either while the download is in progress, or before the download starts to see if that interferes with the download.
Regards. Al
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