>To the best of my knowledge, Fox Pro 2.6 will not read a table modified with VFP. The later is adding a special bit to the header of the table.

As long as you don't use any VFP specific features (integer, datetime, money data types; Nullable fields; e.t.c), table will not be converted into VFP format and will be accesible by Foxpro 2.6.