In this post, you’ll learn about the error “CRYPT_E_ALREADY_DECRYPTED 0x80091009” that is returned when working with COM based APIs or libraries in Windows.
COM Error Message
CRYPT_E_ALREADY_DECRYPTED 0x80091009
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 content of the cryptographic message has already been decrypted.
