On August 13th 2012, the Exchange CXP team released Update Rollup 4 for Exchange Server 2010 SP2 to the Download Center.
This update contains fixes for a number of customer reported and intern...
Updated Jul 01, 2019
Version 2.0
Blog Post
There also seems to have been some undocumented changes to programmatic support which forced me to run the script C:Program FilesMicrosoftExchange ServerV14binRemoteExchange.ps1 to allow Exchange cmdlet invocation from c#, which was not required before RU4. This script introduces a problem where some cmdlet invocations return the error
Method not found: 'Microsoft.Exchange.Management.SystemConfigurationTasks.ArbitrationMailboxStatus Microsoft.Exchange.Management.SystemConfigurationTasks.AdminAuditLogHelper.CheckArbitrationMailboxStatus(Microsoft.Exchange.Data.Directory.OrganizationId, Microsoft.Exchange.Data.Directory.Recipient.ADUser ByRef, Microsoft.Exchange.Data.Storage.ExchangePrincipal ByRef, System.String ByRef)'.
This error is also returned with RU4 un-installed, however I do not have to run the script so I have a work around. I have not had time to work out what the problem is here, as yet.
Jon