Hi All,

I've been working on this issue for a while now, but haven't had any luck.  I am missing the Autodiscover Virtual Directory in IIS. I have run the following command in Exchange Powershell...

New-AutodiscoverVirtualDirectory -Websitename "Default Web Site" -BasicAuthentication:$true -WindowsAuthentication:$true

Unfortunately, I am receiving this error...

The virtual directory 'Autodiscover' already exists under 'EXCHANGE.CORP.AD/Default Web Site'.
Parameter name: VirtualDirectoryName
    + CategoryInfo          : InvalidArgument: (EXCHANGE\Autodiscover (Default Web Site):ADObjectId) [New-Autodiscover
   VirtualDirectory], ArgumentException
    + FullyQualifiedErrorId : 779E2C6B,Microsoft.Exchange.Management.SystemConfigurationTasks.NewAutodiscoverVirtualDi
   rectory

IIS does not show the directory.  I have found several articles suggesting I should delete Autodiscover from the IIS Metabase, but there's no entry for Autodiscover found via IIS Metabase Explorer.  Also, there's no entry regarding Autodiscover in...

C:\Windows\System32\inetsrv\config\applicationHost.config

Any suggestions are more than welcome.

Hello,

Make sure that 'Autodiscover' entry is not presented in ADSIEDIT

Open ADSIEDIT->Configuration-->CN=Services-->CN=Microsoft Exchange-->CN=Organization-->CN=Administrative Groups-->CN=Exchange Administrative Groups-->CN=Servers-->CN=Exchange-->CN=Protocols-->CN=HTTP

In the right pane, check whether the CN=Autodiscover (Default Web Site) is present.

If it is not present there, you can assume that there can be a replication issue in active directory. Fix that, or wait for replication to happen

Hi ManU PhiliP,

Thank you for your quick response.  I earlier found that object and renamed it to CN=Autodiscover (Default Web Site)-OLD.  I then performed the New-AutodiscoverVirtualDirectory command.  I received the same error, and found a new entry in ADSI.  I have since deleted the renamed object and kept the newly created one.  Would you suggest the Autodiscover object be completely deleted from the Protocols --> CN=HTTP container?

Hi,

Actually, there is no point in keeping multiple Autodiscoverentries in an infrastructure. So remove the old one's entries completely

Hi ManU PhiliP,

I deleted CN=Autodiscover (Default Web Site) from CN=HTTP and ensured replication occurred.  After confirming, the

New-AutodiscoverVirtualDirectory -Websitename "Default Web Site" -BasicAuthentication:$true -WindowsAuthentication:$true

command again failed with the same error.  Again, a new object for autodiscover in CN=HTTP was generated.

Hi,

I have found these similar threads for your reference:

https://social.technet.microsoft.com/Forums/office/en-US/1c242366-1850-440f-be73-9666cdb44b71/recreate-autodiscover-virtual-directory?forum=exchangesvradminlegacy

https://social.technet.microsoft.com/Forums/office/en-US/5e5f28d0-888b-4d52-bccd-11f204fef30d/recreating-autodiscover-virtual-directory-fails?forum=exchange2010

If it doesn't work, try to reinstall the CAS role.

Regards,

David