The “IIS 6 WMI Compatibility” Component Is Required Error While Upgrading To Exchange 2010 SP2…

MS Exchange

While upgrading to Exchange 2010 SP2 using the GUI, you will come across the error message shown below. This only happens while upgrading the CAS role.

IIS 6 WMI Required for Exch 2010 SP2 Upgrade

The reason is that the CAS requires a new pre-requisite for supporting OWA mini (a new feature in SP2). Hence, either install it using Server Manager (right click “Web Server” and add role service) or Windows PowerShell.


To install using PowerShell, run Import-Module ServerManager followed by Add-WindowsFeature Web-WMI.

Install Web-WMI

Another option is to run the setup from the command line, Setup.Com /mode:upgrade /InstallWindowsComponents

Happy upgrading Winking smile

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  1. I upgraded our Exchange 2010 SP1 on the weekend to SP2 with Rollup 1 – now have no Free/Busy data for Outlook clients. <9 months exp btw.

  2. Thanks,some great data here keep up the good work. I actually allow for a more creative comment as I’m a bit out of my depth but I will be checking back here for further updates.


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