>problem
>
>- I have a database in vfp 3.0
>- I open it in vfp 5.0 (I put datas in the files)
>
>is there a way from VFP5 to compile it back in vfp 3.0

not really. if you don't use long field names, you can copy to oldfile type 2x and open those in 3 (then add them to the 3.x dbc)