I am running VirtualBox on a Ubuntu 12.04 host with a US keyboard. The virtual machine is running Japanese Windows Server 2008 R2 (Standard). I want to
cd \ from the Command Prompt.
My backslash key is mapped to
] while in the VM, and I can't find a key that maps to backslash/Yen. After looking at a few images   and talking to a Japanese colleague (and having them demonstrate how they would type it) I've come to the conclusion that my US keyboard is effectively missing the required key.
If I copy the Yen character from the VM, it is pasted as backslash in my host. If I copy a backslash from my host, it is pasted into the VM as a Yen. So, using copy and paste while on the VM or between the VM and host I can
cd ¥ and (laboriously) achieve the desired result. But I want something simpler.
What key combination can I press to simply enter the ¥ character?