>Make all structural changes in an empty copy of the database. At the client site, copy this empty structure to a temporary location, and do an APPEND FROM for each table.

That's exactly what I'm doing now, I create a project with a .prg that include the database, table, etc. struture using GENDBC.PRG. Then One programa apply a APPEND from and copy files. But I'm looking for a more practical way. "Cosas que la puedan hacer los usuarios con solo enviarle un CD"