How to deploy a c# application connected to sql server express database ?

[C# Programming]

Hello every one,
I have sql server 2005 express edition installed and I created the database using it.I then developed a C# application that connects to this database. Now I want to deploy all of this to a client PC (only 1 client).
does he need to have SQL server installed ?
What steps should I do to deploy ?

Thanks

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