>Pablo,
>
>there was Milan Kosiva article in FoxPro Advisor May 1998
>and sample fox code which uses info-zip dlls for packing and
>unpacking.

I'm not subscribed to this :(

>My problem is that info-zip dlls will not produce
>standard zip file structure.

?? don't know

I found another full source code that support's disk spanning ... etc but it's in Delphi or Borland C Builder, and have no samples for how to use with Visual Foxpro. If anyone wants to convert them to an OCX I will send via email. They are based on infozip with lots of enhacements... A volunteer ???