In principle, this should work for Help+Manual WebHelp. However, we don't run SharePoint ourselves so we'd be grateful if SharePoint users could test it out and let us know if it works for you.
Step 0: Get the Help+Manual 8.4 pre-release installer (optional)
We've updated the internal HM2Go server in this release so that you can preview .aspx and .asp WebHelp. Otherwise the browser will only show you the source code of the pages. Get the installer with this link:
https://www.helpandmanual.com/download/ ... p-v840.exe
Step 1: Generate .aspx WebHelp
This is easy to do in Help+Manual. You just need to change the standard extension for HTML files to .aspx in Configuration > Publishing Options > WebHelp > HTML Export Options (type it in manually, there isn't an option for it). Then in the Publish screen change the output file name from index.html to index.aspx. This will generate an .aspx WebHelp with all the internal links correct.
If you get the 8.4 pre-release you will also be able to preview the WebHelp.
Step 2: Follow the instructions on João Ferreira's page to add the .aspx WebHelp to your SharePoint site
https://sharepoint.handsontek.net/2019/ ... harepoint/
Please let us know how you get on!