Component Object Model (COM) Error – SEC_E_INCOMPLETE_MESSAGE 0x80090318

In this post, you’ll learn about the error “SEC_E_INCOMPLETE_MESSAGE 0x80090318” that is returned when working with COM based APIs or libraries in Windows.

COM Error Message


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 supplied message is incomplete. The signature was not verified.