Here is the link for build 3900: (warning: x64 version are know to not working on newer Windows 10 builds )
7zsd_tools_170_3900.7z
Here is an archive with all versions:
7zsd_tools_All.7z
Chris Lake have updated the x64 version to works with Windows 10:
https://github.com/chrislake/7zsfxmm/releases/