The source is available in the following repository: https://gitlab.com/x190/daz-hd-morphs . There you can also find compilation details for the .dll under MinGW on windows x64, and documentation.
If you find this addon useful, consider supporting its development and maintenance here, since my current hardware doesn’t allow me to develop it further or maintain it fast enough: https://xin888.gumroad.com/l/daz_hd_morphs .
The latest version (the main branch) includes documentation in the form of a .pdf in “./blender_addon/documentation/daz_hd_morphs_documentation.pdf”. It includes several step by step examples.
Instead of uploading files here, it’s more convenient for me if you downloaded the files directly from the gitlab link above:
Once you get the files you need to place the directory “./blender_addon/daz_hd_morphs” in “…/AppData/Roaming/Blender Foundation/Blender/3.4/scripts/addons” manually if you downloaded it from gitlab. You can alternatively create a .zip from the daz_hd_morphs directory (call it “daz_hd_morphs.zip”) and tell Blender to install it.