File this under WTF were they thinking.
I hit a website this morning that required Silverlight, so I clicked the link, downloaded and ran the installation program. When it was done, this is what I saw:
I clicked on the "Get more information" link and this is why the install "failed":
Maybe this is a common issue (I haven't searched yet), but c'mon, telling me the installation failed because I need to reboot does nothing but piss me off. Yes, I understand it's an Alpha, but it seems like whatever they used to create the installer should be able to deal with a reboot condition.
I'll update this post later today after I've surfed a bit to check on this particular issue.