>>This info-zip code will not create a zip file structure.
>>There was a Milan Kosina sample in May 1998 FPA about using this in VFP.
>
>What does it do? Now *I* am confused. According to the docs it creates zip files. I've used infozip in the past and the zips are fine.

This article show how to compress a single file using info-zip dll
The compressed file is saved in the memo field.
The only way to produce a zip file structure is to use
RUN ZIP.EXE ... command
However, this will not allow to make backup of open files and use disk
spanning.

Do you have an info-zip dll which creates a stanard .zip file ?

>>There are a lot of free dlls and ocxes which use this code,
>>for example www.foxbrasil.com.br/downloadut.html contains some list of them for foxpro.
>>
>>However, no one of them will produce a zip file structure.
>
>What exactly do you need?

I have a VFP application which runs 7 days per week and 24 hours
per day. Some dbf files are always open (in shared mode).

I need an utility which:

1. Allows to make backup of open dbf files contained in subdirectories.
2. Produces standard multi-disk zip file structure.
3. Is free.


>>Also I need a multi-disk zip structure.
>
>You could actually create the zip locally and then create a simple vfp function that will break it in chunks and save to floppy. I've done it in Clipper. It's really simple.

1. This requires that resulting backup file must fit into hard
disk drive before copying to floppy disks. However, I don't have
so much hard disk space. How can I use this method?

2. I need to send multi volume backup copies in floppy disks to users who have only winzip
installed. Is it possible to extract a file from your resulting
backup set using winzip ?