Installation and Setuphttp://forums.silverlight.net/forums/13.aspxAll about installing and getting Silverlight running on your systemenCommunityServer 2007 (Build: 20416.853)My Vista can run Silverlight in IE7 at lasthttp://forums.silverlight.net/forums/thread/976.aspxThu, 03 May 2007 06:43:58 GMTd0d632c8-a6f7-4f68-b0ce-26aaafd62132:976wtchou0http://forums.silverlight.net/forums/thread/976.aspxhttp://forums.silverlight.net/forums/commentrss.aspx?SectionID=13&PostID=976<p>My Vista Ultimate has installed and uninstalled with&nbsp;Silverlight 1.0 beta in several times. It always works with Firefox 2.0.0.3 but not with IE7.<br />Until I deleted [HKEY_CLASSES_ROOT\TypeLib\{283C8576-0726-4DBC-9609-3F855162009A}\0.8.5.0]. It works correctly. <br />I found the 0.8.5.0 is the version of WPF/E Feb CTP. Maybe, it was not cleaned the previous installation in some situation.</p>