List of wusa.exe exit codes and descriptions

Hello.

When troubleshooting Windows patch installs, it's often a good help knowing what the wusa.exe exit code means as it can point you in the right direction to what the cause might be.

My problem is that I so far haven't found a good source of information for these exit codes. For some of them, I can convert the decimal value to hex and find the code on Windows Update error code list. I currently have more than 70 different "wusa.exe returned failure exit code" messages in my database, but it's only less than 10 of them I've been able to find a good description for.

Does anyone have a good list they want to share?

Thanks in advance.