Visual Studio “Orcas” October 2006 CT版可以下载了，但这次Release的是一个虚拟机的镜像，所以需要在虚拟PC上运行，文件的大小是4150.5 MB，有点太大了。

下载地址：

http://www.microsoft.com/downloads/details.aspx?familyid=82243606-D16D-445C-8949-9EE8C10CDA2E&displaylang=en

亮点如下：

·       ADO.NET 3.0 Advancements

·       LINQ over XML (XLinq)

·       Multi-targeting

·       Improved 64bit application working set

·       Lightweight reader/writer lock with deadlock-free upgrade support.

·       A high performance trace listener which logs XML to disk in the event schema.

·       Getting VSTO and/or controls off machine policy/legacy policy migration

·       Security Platform Parity - Suite B support: AES

·       A new date time data structure that can specify an exact point in time relative to the UTC time zone.

·       New IO types that expose almost all pipe functionality provided by Windows.

·       A new high performance set collection.