taskkill vhui64.exe don't work

Actually taskkill in Windows is not like kill in linux, because it just sends a window close event, then prevents further events from being sent to the window. Hence it doesnt work. VirtualHere just minimizes the window to the system tray as it would if you clicked the close button.

You need to ask virtualhere to shut itself down like this;

vhui64.exe -t exit -r out.txt

OK, its asking that because you are currently using a device and its warning you of that,

I will modify the client slighly so it will just exit even if a device is in use, will let you know when that build is ready ...

You must use the -r argument as shown in the previous post. Why? because windows doenst have a console to write to in a batch file like linux does

vhui64.exe -t "manual hub add,address:7575" -r out.txt
timeout 3
vhui64.exe -t "manual hub remove,address:7575" -r out.txt

Because you cant write to the directory you are in.

Try this then change out.txt to %TEMP%\out.txt

AND

Also i updated the client to 3.1.5 so you can send it the EXIT command and it will quit without warning about an inuse device.