WSE 2.0 - What's New and Different in WSE 2.0?

Web Services Enhancements for Microsoft .NET version 2.0 includes a number of enhancements over earlier versions of WSE to more easily apply security policy, establish long-running secure conversations, and work in multiple hosted environments. Some of these enhancements, such as the WSE 2.0 support for the newly-approved Oasis standard version of WS-Security, mean WSE 2.0 cannot exchange SOAP messages with WSE 1.0. The good news is that you can use the WSE 2.0 assemblies in the same applications as your WSE 1.0 assemblies so that a single application can communicate with both WSE 1.0 and WSE 2.0 Web services

To read more about WSE 2.0 Enhanced features like:

Policy
WS-Trust and Security Context Tokens
Kerberos Security Tokens
Role-based Security Using Security Tokens
Signing and Encrypting Security Tokens
SOAP Messaging
XML Security Token Support

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