>>Are any data compatibility problems between VFP6 and VFP5? I mean, if I modify table/database structure in VFP6, or even create new table from scratch there, will it pose any problem working with this data from VFP5 application?
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>So far, the only thing that's bitten me is when I used new VFP6 specific functions in a stored procedure; that's by no means the result of exhaustive testing, though.

Great! One my client got into specific situation: they lost their VFP5 CD-ROM, and cannot buy nothing except VFP6 now: they should have something to do data maintenance.