What's the replacment for Microsoft.Web.Services3.dll in .NET 4.x?

I have an app used Microsoft.Web.Services3 before. Now I want to move this app to .NET 4.x. What's the replacment for Microsoft.Web.Servic开发者_C百科es3.dll in .NET 4.x?

or I should keep the assembly Microsoft.Web.Services3.dll and the reference to it in my app even I use .NET 4.x?

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You might want to consider migrating your WSE Web Services to WCF. That article says

The benefits of migrating WSE 3.0 Web services to Windows Communication Foundation (WCF) include improved performance and the support of additional transports, additional security scenarios, and WS-* specifications. A Web service that is migrated from WSE 3.0 to WCF can experience up to a 200% to 400% performance improvement.

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Microsoft.Web.Services3.dll is part of the obsolete WSE 3.0.

There is no direct replacement. You should rewrite the service to use WCF.