WebServicesExtensions as described in this page is not limited to MicrosoftCorporation extensions in DotNet by the same name. For the WS-* of extensions please refer to WebServicesSpecifications page.
The Microsoft version of WSE include a lot of MS adoption of standardisation efforts applied to WebServices.
News
Jun05 CommunityTechnologyPreview (CTP) version of WSE v3 (one that MicrosoftIndigo uses) is available. GetItFirstFromHere
MS information on version 3 can be seen at http://www.microsoft.com/downloads/details.aspx?familyid=2896249a-d107-4f19-b8e7-b01da67a5c02&displaylang=en
Many of the extensions pertain to changes in the landscape of InformationSecurity. Some are not, an example being extensions to attempt to standardise having attachments included in the messages.
Major areas of extensions to WebServices include:
CategoryXml CategorySecurity CategoryMessagingServices