Trying to connect to VirtualBox 4.3 host using Windows 7 remote desktop protocol, fails with:
Showing details of VRDE for this machine:29/10/2015 21:54:23 webSocketsHandshake: invalid client header
29/10/2015 21:54:23 Client 192.168.1.219 gone
29/10/2015 21:54:23 Statistics events Transmit/ RawEquiv ( saved)
29/10/2015 21:54:23 TOTALS : 0 | 0/ 0 ( 0.0%)
29/10/2015 21:54:23 Statistics events Received/ RawEquiv ( saved)
29/10/2015 21:54:23 TOTALS : 0 | 0/ 0 ( 0.0%)
VBoxManage showvminfo "VM_NAME" --details | grep VRDE
VRDE: enabled (Address 0.0.0.0, Ports 3389, MultiConn: off, ReuseSingleConn: off, Authentication type: null)
VRDE port: 3389
VRDE property: TCP/Ports = "3389"
VRDE property: TCP/Address = <not set>
VRDE Connection: not active
[SOLUTION]
By default it seems that only VNC is enabled. Not RDP.
Using VNC, connecting to port 3389 worked.
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