We are implementing a sophisticated numbering system to apply to our headings, but it is not working when we produce the HTML from our Word docs.
Unfortunately Word's automatic heading numbering is a feature that only works well in Word itself!
Microsoft's old WinHelp compiler does not cater for it at all and it is even more difficult to implement in HTML. We included the 'fixheadingnumbering' switch to cater for problems caused by using this Word feature however it cannot be expected to cater for customized numbering schemes.
Unfortunately you will have to 'hardcode' your customised numbering scheme.