Web Services Enhancements 1.0 for Microsoft .NET
Here's the big announcement: Web Services Enhancements 1.0 for Microsoft .NET (WSE) provides advanced Web services functionality for Microsoft Visual Studio .NET and Microsoft .NET Framework developers to support the latest Web services capabilities. Enterprise ready applications can be developed quickly with the support of security features such as digital signature and encryption, message routing capabilities, and the ability to include message attachments that are not serialized into XML. Functionality is based on the WS-Security, WS-Routing, WS-Attachments and DIME specifications.
Web Services Enhancements 1.0 for Microsoft .NET is the released and supported version of the Web Services Development Kit Technology Preview (WSDK).
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The articles below explain how to use the WSE in conjunction with Microsoft ASP.NET to build more sophisticated Web service applications. If you havent used the WSE before, start with Programming with Web Services Enhancements 1.0, which describes the kits basic architecture and programming model. If you want a more general conceptual understanding of the specifications the WSE implements, see Understanding GXA.