Membership tables for two application

I have an asp.n开发者_JAVA百科et application which is using form authentication, asp.net membership provider (ASP.NET 2.0).

Now I am creating another application which will use the same database to login into the application (ASP.NET 4.0).

how can I do it in simplest way?

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You can use same provider on both applications. Simply copy <membership> and corresponding <connectionString> sections from first to second application's web.config file.