I did try the code suggested, but the VM abortedMartin wrote:The post talks about the virtual USB 3.0 controller inside the guest (and the drivers needed inside the guest OS). This has nothing to do with any hardware on the host.
Failed to open a session for the virtual machine XP3.
The VM session was aborted.
Result Code: NS_ERROR_FAILURE (0x80004005)
Component: SessionMachine
Interface: ISession {7844aa05-b02e-4cdd-a04f-ade4a762e6b7}
I realize my understanding of Vbox is limited, but the explanation given in USB 3.0 support in XP guests viewtopic.php?f=15&t=74575 suggests support of specific controller chips. With or without the extradata key, it's not working for my setup.