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Component Object Model (COM) Error - E_CHANGED_STATE 0x8000000C - Developer Publish

Component Object Model (COM) Error – E_CHANGED_STATE 0x8000000C

In this post, you’ll learn about the error “E_CHANGED_STATE 0x8000000C” that is returned when working with COM based APIs or libraries in Windows.

COM Error Message

E_CHANGED_STATE 0x8000000C

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.

A concurrent or interleaved operation changed the state of the object, invalidating this operation.