VMware ESXi6.5 MAC OS X installation guide patch Unlocker2.1.0
Currently the latest version for Unlocker2.1.1, but does not support ESXi6.5
So the ESXi6.5 support the latest version for Unlocker2.1.0
Offer InsanelyMAC BBS to download the zip package,
http://www.insanelymac.com/forum/files/file/835-unlocker/