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You cannot install Lync Server 2010 in an environment that has a FTP site in IIS

Assume that you install the FTP role service on a computer and create a FTP site. You try to deploy Microsoft Lync Server 2010 on the computer. In this situation, the setup process fails. Additionally, you receive the following error message:
System.Runtime.InteropServices.COMException was unhandled
  Message="The object identifier does not represent a valid object. (Exception from HRESULT: 0x800710D8)"

 This issue occurs because the Lync Server 2010 setup process does not expect FTP site in the Internet Information Services (IIS).
To resolve this issue, install the following cumulative update:
2514981 Description of the cumulative update for Lync Server 2010, Core Components: November 2011


Article ID: 2637103 - Last Review: 11/19/2011 02:09:00 - Revision: 1.0

Microsoft Lync Server 2010 Standard Edition, Microsoft Lync Server 2010 Enterprise Edition

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