"Execution of the Set-WebServicesVirtualDirectory cmdlet had thrown an exception" error message when you try to run the Hybrid Configuration Wizard (HCW) in Office 365

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Article ID: 2821213 - View products that this article applies to.
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When you try to run the Hybrid Configuration Wizard (HCW) in Microsoft Office 365, you receive the following error message:

Execution of the Set-WebServicesVirtualDirectory cmdlet had thrown an exception. This may indicate invalid parameters in your Hybrid Configuration settings.
Unable to cast COM object of type 'System.__ComObject' to interface type 'System.Web.Configuration.IRemoteWebConfigurationHostServer'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{A99B591A-23C6-4238-8452-C7B0E895063D}' failed due to the following error: Interface not registered (Exception from HRESULT: 0x80040155).
at System.Management.Automation.PowerShell.CoreInvoke[TOutput](IEnumerable input, PSDataCollection`1 output, PSInvocationSettings settings)
at System.Management.Automation.PowerShell.Invoke(IEnumerable input, PSInvocationSettings settings)
at System.Management.Automation.PowerShell.Invoke()
at Microsoft.Exchange.Management.Hybrid.RemotePowershellSession.RunCommand(String cmdlet, Dictionary`2 parameters, Boolean ignoreNotFoundErrors)a
Additional troubleshooting information is available in the Update-HybridConfiguration log file located at D:\Program Files\Microsoft\Exchange Server\V14\Logging\Update-HybridConfiguration\HybridConfiguration_10_22_2012_17_3_38_634865222180903876.log.


This issue occurs if you run the HCW from a server that does not have a Client Access server (CAS) role installed.


To resolve this issue, run the HCW from a server that has the CAS role installed.


Still need help? Go to the Office 365 Community website.


Article ID: 2821213 - Last Review: July 9, 2014 - Revision: 6.0
Applies to
  • Microsoft Exchange Online
o365e o365a o365m o365022013 hybrid KB2821213

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