The Exchange Team silently released RU7 for Exchange Server 2010 Service Pack 1 (KB2743248). This update raises Exchange 2010 version number to 14.1.421.0.
This Rollup only includes the fix for the WebReady security issue described in Microsoft Security Bulletin MS12-058 (KB2740358).
Note that update rollups are cumulative, i.e. they contain fixes released in earlier update rollups for the same product level (RTM, SPx). This means you don’t need to install previous update rollups during a fresh installation but can start with the latest rollup available right away.
As with any Hotfix, Rollup or Service Pack, I’d recommend to thoroughly test this rollup in a test and acceptance environment first, prior to implementing it in production. For the correct procedure on how to update DAG members, check here.
You can download Exchange 2010 SP1 Rollup 7 here.
EighTwOne (821) 
Hi Greetings,
I have Exchange 2010 SP1 RU6 installed on my servers but Recently I noticed that my exchange servers are updated with RU7
After this update I found the below event log in CAS server
Outlook Web App failed to load the following theme folder: E:\Program Files\MicrosoftExchange Server\V14\ClientAccess\owa\14.1.420.0\themes\wrld
More files are missing under Themes folder….
Hence we unable to access Webapp .. Is there any fix available for this …
I remember the same issue happened for SP1 RU 1 update.
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Have you tried running UpdateCas.ps1 ?
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Hi
Thanks for your reply.. Can you please clarify the below questions…
May I know what this script will do ?
Will it restore all the files which are missing ?
Where can i find this Script ?
I hope this script is suggested for RU1 update will it work for RU7 ?
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Just to make sure, you ran the MSP with elevated privileges?
UpdateCAS.ps1, located in $exbin, handles the OWA and ECP updates.
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HI Michel
Yes. It worked after running UpdateCAS.ps1
Thanks a lot Man .. Moreover your blog is good …
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