+2  A: 

The XML Schema Editor was taken out of VS2008 for various reasons. We are planning to replace it with a new designer in a future version.

http://social.msdn.microsoft.com/Forums/en-US/xmlandnetfx/thread/84212ff1-ca41-4a86-bc0a-fe9d59b902f9

Shoban  2009-07-23 10:28:29

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