>It is true that fp2.6 an VFP7.0 dbf's are different. Only in header Microsoft pu a few simbols that set with what product you work.
>My programmers tell me that if you open a DBF's with other version - it change header and could be not possible to open it with original one.
>We refuse that kind of project where client like to work simultaneously modules done with FPW2.6 and VFP7.0

That's not entirely true. You can access and update fox2x table in VFP w/o converting them. However they'll be converted to VFP if you perform on them any command that requires exclusive use of table, like INDEX, PACK and so on.