http://www.microsoft.com/windows/pr...pc/default.mspx
剛剛無意間發現的...才開放下載沒幾天喔

2007版從白皮書上看來大致有四大特色(跟上一版比較)
•Optimized for Windows Vista. The virtualization architecture has been optimized for Windows Vista to provide improvements in performance, system resource usage, and stability.
•Improved performance based on Microsoft Virtual Server 2005 R2. Virtual PC 2007 leverages the performance improvements introduced in Virtual Server 2005 R2.
•Provides support for 64-bit host operating systems. You can run Virtual PC 2007 on 64-bit versions of Windows Vista. This means you can run 16-bit operating systems (such as Windows 98 SE) which are not supported natively on 64-bit versions of Windows Vista.
•Provides support for sound devices in Windows Vista guest operating systems. Virtualized sound device drivers are available to Windows Vista guest operating systems. This allows Windows Vista guest operating systems to play sounds through the host operating system sound devices. Other guest operating systems will continue to have sound support as it exists in Virtual PC 2004 today

最大的改進應該是支援Vista跟64位元吧!
至於其餘兩點到底有沒有真的改進還要等實測才會知道
目前一號機不在身邊...沒辦法測試
只能過陣子再裝裝看了
有需要或是想嚐鮮的人快去載吧!

PS:載這個不用經過那個討厭的WGA喔~
可以直接下載