How do I install the Silverlight 4 beta runtime on a test machine without Visual Studio?

Can anyone tell me how to install the Silverlight 4 beta run开发者_JS百科time on a test machine without Visual Studio? I keep getting an error message about the beta version being expired....

Thanks.

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It turns out that the RC was released days before I attempted this install. After upgrading Visual Studio and my Silverlight application to SL 4 RC (up from the beta) it installed and ran fine on the test machine.