No.
SQL Server Express is free, but has limitations. It's definitely not a enterprise db. Anything bigger than what Express will do, a purchased license is required. I'd make it easy for you. Require the customer to obtain, install, setup, and maintain SQL Server. You supply the application.
>If we develop a Application with ' VFP9 + Mssql ' then Is we need to buy mssql for every customer ?
>
>warm regards,
>mk.
Craig Berntson
MCSD, Microsoft .Net MVP, Grape City Community Influencer