In hyperlinks of the form URL#comment-number, # becomes %20-%20 in IE11 and the field code is " \l ". The webpage sends an error like Page not found or Internal Server Error. Correcting the link in the browser corrects operation.
Wood 2007 H&S is recently installed in a new, cleanly installed Windows 7 + SP1. Word has 36 updates including SP3 and W7 has 163 updates. Office diagnostics find no errors. This error did not occur with the same Office 2007 H&S in an earlier W7+SP1 installation on the same PC.
This fault occurs with Excel but the links are transmitted correctly from an htm file.