Component Object Model (COM) Error – XACT_E_TIP_PROTOCOL_ERROR 0x8004D020

In this post, you’ll learn about the error “XACT_E_TIP_PROTOCOL_ERROR 0x8004D020” 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.

This transaction manager encountered a protocol error with another TIP transaction manager.