Word detector checks for incorrect protocol

[ericlaw1979]

On Windows, at least, the current version of Word registers for ms-word rather than word.

[spalt08]

Good point.
I also noticed open-word: and updateoffice: on my Mac.

However, I don't think I will change the demo since we don't have any reason to detect every app perfectly.
It's just a PoC for a vulnerability.