Microsoft Exchange 2013 CU5 Released

Microsoft has finally released Exchange 2013 CU5

The main Enhancements in CU5 are

1) Introduction of New service – Microsoft Exchange shared Cache Service.

The Microsoft Exchange Shared Cache Service is a new service that is added to Exchange Server 2013 Cumulative Update 5 to meet future needs of the product.

It improves System Performance through Caching few system Information.Currently this service is not been used as of now. It the readiness for enabling this functionality it the future Cumulative updates.

Note : We might be experiencing some probe config in Managed Availability frequently restarting this service Microsoft Exchange Shared Cache Service after CU5 upgrade because this service is yet to be fully functional.

Inorder to fix this Microsoft has published a Windows PowerShell script that you can use to disable the probes to prevent the Exchange Shared Cache service from restarting.More information is available in KB2971467.

2) Improvements in Managing OAB for Multi site Environments which was already mentioned by Ross Smith IV on the Exchange Team blog.
3) New options in the Hybrid Configuration Wizard
It has an option My Office 365 Organization is hosted by 21viaNet.

For more information about HCW read Micheal’s Blog –
Read more information about Cu5 in Exchange Team Blog –
You can look more detailed information about CU5in Tony Redmond’s blog as well –



Sathish Veerapandian


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