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    Component Object Model (COM) Error – SEC_E_UNSUPPORTED_PREAUTH 0x80090343

    admin November 3, 2024 No Comments

    In this post, you’ll learn about the error “SEC_E_UNSUPPORTED_PREAUTH 0x80090343” that is returned when working with COM based APIs or libraries in Windows.

    COM Error Message

    SEC_E_UNSUPPORTED_PREAUTH 0x80090343

    What is COM?

    Microsoft’s COM stands for Component Object Model. Component Object Model (COM) is a networked, object-oriented framework for building interoperable binary software components.   Microsoft’s OLE (compound documents), ActiveX (Internet-enabled components), and other products are built on the COM base technology.

    Error Description

    Below is the description of this COM Error.

    An unsupported preauthentication mechanism was presented to the Kerberos package.

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