What does xp_qv do in SQL Server?

Last night one of our SQL servers developed some major problems and after a colleague stopped, started, and all the usual things it started checking and rebuilding databases and is now running an extended stored procedure called "xp_qv".

The internet seems to be very short of information on what this procedure does or anythign like that so I was hoping somebody here might be able to help.

I sho开发者_如何学运维uld add that I assume it is meant to be running so the question isn't "Can I stop it" or anything like that, its just curiosity in what it is doing in the hope that it will help determine how long before things are usable again...

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This is the only information I could find..

xp_qv, hosted in xpsqlbot.dll is a wrapper around functionality in sqlboot.dll, which returns information about the SKU type, licensing etc It is not documented that is why you can not find a reference.