Component Object Model (COM) Error – CRYPT_E_UNEXPECTED_MSG_TYPE 0x8009200A

In this post, you’ll learn about the error “CRYPT_E_UNEXPECTED_MSG_TYPE 0x8009200A” that is returned when working with COM based APIs or libraries in Windows.

COM Error Message

CRYPT_E_UNEXPECTED_MSG_TYPE 0x8009200A

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.

The certificate does not have a property that references a private key.