>Updates shutting down IIS are not that unusual, I recall seeing that happen a couple of times over the last year or so. In my case I'm updating SBS servers remotely through Remote Web Workplace (RWW), which relies on IIS. In the middle of the updates the connection to the server would be lost, but would come back some time later. I would then be able to log on again and restart the server to complete the update process.
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>None of the servers I administer run multiple instances of IIS, so I can't comment on that scenario.

Thanks