xps viewer in Dec CTP?

How can xps files be displayed in WinFX runtime ver2.0.50727.151?thanks!
[72 byte] By [WangYuantao] at [2008-1-28]
# 1
We recommend you download the latest CTP Version. You should then be able to view .XPS files by double-clicking them which will bring up the XpsViewer inside Internet Explorer.
OliverFoehr at 2007-9-8 > top of Msdn Tech,Software Development for Windows Vista,XML Paper Specification (XPS)...

Software Development for Windows Vista

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