I logged in as the built-in local Administrator account and launched the install from the 9090 site again.
This time, it prompted asking if I wanted to allow the unsigned software to run, I clicked OK and it created the shortcut to the desktop.
I then copied the same shortcut into the desktop profile for my domain account and it works.
I'm not sure why the prompt to allow installation was not displayed in my user profile and it just displayed the error saying the shortcut cannot be created instead.
Both accounts are local administrators on the PC.