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Retrieving the COM class factory for component with CLSID RRS feed

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    Retrieving the COM class factory for component with CLSID {EC413D66-6221-4EBB-AC55-4900FB321011} failed due to the following error: 80040154 Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).

    Thursday, May 26, 2011 11:21 AM

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    you got this error when call SyncOrchestrator.Synchronize() method.

    This error is occurs when you are developing on x64 based machine.

    The Possibilities of this error.

    1- you are targeting x86 in the debug dropdown list, make sure it's x64

    2- you are referencing the x86 Synchronization.dll make sure you are referencing the x64 which is located at

    C:\Program Files\Microsoft Sync Framework\2.1\Runtime\x64\Synchronization.dll
    Thursday, May 26, 2011 11:22 AM