>Now I use pkzip and pkunzip programs i my applications . I'm looking for library for VFP

Hi Andrzej,

i suggest to use the unzip32.dll that is available for free at UT file section. The only pain, is that some of its functions has struct parameters and callback functions.
The first limitation is not problem, use struct solution of Ed Rauh.

Alternatively you can write an FLL wrapper for this DLL, (as me did)

bb