What did I miss with this new release of Vmware Esxi 6.7U2?
There is no way to unlock a Windows machine using the send the keystroke feature within the Web host client.
I am using a Apple computer and none of the known web browser in their latest version can send the CTRL+ALT+DEL or any other keystroke by the way: Safari, Firefox, Chrome, Edge for Mac OS.
It seems that apple computers have been excluded from this feature which is quite a shame, I tried with a virtual machine running Windows 10 and everything is fine so it definitely is a bug in the code.
Safari debug console tells me the following when using the keystroke feature:
main.js -- line 85 464:38 "sendKey is not supported by vscan keyboard"