Component Object Model (COM) Error – ERROR_VOLMGR_STRUCTURE_SIZE_INVALID 0xC0380041

In this post, you’ll learn about the error “ERROR_VOLMGR_STRUCTURE_SIZE_INVALID 0xC0380041” 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 Size fields in the VM_VOLUME_LAYOUT input structure are incorrectly set.