Troubleshooting: /MSOffice/cltreq.asp

Scrolling through Domain Pigeon’s log file, I see:

ActionController::RoutingError (No route matches "/MSOffice/cltreq.asp" with {:method=>:get})

What’s going on here? My first impression was that someone was probing the site for vulnerabilities, but it turns out that’s not the case. Googling points to the answer:

Is someone attempting to hack my system? No, Not really.

These are requests from a user who has installed Microsoft Office and Internet Explorer, and who has enabled the “Discuss” toolbar in his browser. When that toolbar is enabled, the browser will automatically query for these two files when visiting each site, to determine whether the Office Server Extensions are installed.

Microsoft, was there not a better way to do this?

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