Is MySQL Classic or MySQL Standard edition need to use?

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http://serverfault.com – We are developing a Windows Application using c# with a backend as MySql. We are connecting to the database from c# using a MySql.Data connector. Now we need to finalize whether we can go for MySQL Classic Edition or MySQL Standard Edition. We need to sell this product to the vendors.I'm new to MySQL can anyone help me out of this problem? Thanks in Advance.............. (HowTos)