Component Object Model (COM) Error – CONVERT10_E_OLESTREAM_FMT 0x800401C2

In this post, you’ll learn about the error “CONVERT10_E_OLESTREAM_FMT 0x800401C2” 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.

Contents of the OLESTREAM not in correct format