'What does IIS do when \\?\c:\filename instead of pulling an actual path

I am trying run an api on IIS, but when ever I try to use the IIS manager I get this error on it not sure what it is trying to point to with \?\c:\ all of my other co-workers do not have this issue with IIS.

IIS Error

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Solution 1:[1]

Please install url rewrite on IIS. Download it from here.

Sources

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Source: Stack Overflow

Solution Source
Solution 1 Bruce Zhang