'downgrade' sql server 2005

I developed my application using SQL2005 Developer edition. but my clients
wants it free with SQL2005 Express. How exactly to migrate my DB in Dev
Edition to Express?As long as your DB is less than 4gb .Backup and restore.
Jack Vamvas
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"Patrick Yong" <patrickyong@.newsgroups.nospam> wrote in message
news:eTmqj1gQGHA.4900@.TK2MSFTNGP09.phx.gbl...
> I developed my application using SQL2005 Developer edition. but my clients
> wants it free with SQL2005 Express. How exactly to migrate my DB in Dev
> Edition to Express?
>