Ok--links exist, even though the compiler throws an error message when it encounters a link to a bookmark. I had searched for the message and not found anything relevant--but when I checked the forum this morning, I saw the 'more like this' list on the right-hand side of this web page.
Those links did indeed lead to relevant posts, which list this as a known issue.
The software I was preparing the CSH for was compiled today, so I was able to check the file and ascertain that they do indeed work.
So, I am happy and smiling and wish you all a great day