The on-line versions of the Open Protocol specifications have a known bug that misdirects links intended to jump to Appendix A: Windows Behavior in the current specification. These links are easily identified as a number enclosed in triangle-brackets, i.e. <1>. You can navigate to manually to Appendix A in the current specification to see the reference.
These links work correctly in the PDF version of the specification.
The links in the online version will be fixed in the next maintenance build of the specifications, scheduled for early next week, and I’ll post to the forum when the fix is live.