Broken link to PIFF specifications

[AndSk]

The link "Protected Interoperable File Format (PIFF) specification" (https://go.microsoft.com/?linkid=9682897) gives a 404 error on this page:

https://docs.microsoft.com/en-us/iis/media/smooth-streaming/protected-interoperable-file-format

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[ryanmajidi]

@shirhatti Can you please take a look at this?

[3052]

https://github.com/user-attachments/files/16292256/Protected.Interoperable.File.Format.PIFF.1.1.pdf