Today I tried HTTrack for Windows and for web pages that link to other pages
with anchors, HTTrack is insert / and _ in the URL.  Doing so makes the URL
invalid.

For example:  HTTrack creates URL link as;
<file:///C:/..../www.mywebsite.com/#_Room>

If I remove the / _ then web page loads ok.
<file:///C:/..../www.mywebsite.com#Room>