Cant give static IP to Host only adapter

[shashank.raghunath]

I am using Virtual Box 4.3.2 with extension pack on Windows 8.1.
When i create a Host only adapter and Give this Ip 10.20.0.2 subnet 255.255.255.0 DHCP disabled, it automatically reverts to an APIPA. I cant manually change the it's from network connections as i get this error "in order to configure tcp/ip you must install newtwork adapter".

C:\Program Files\Oracle\VirtualBox>VBoxManage list hostonlyifs

Name: VirtualBox Host-Only Ethernet Adapter

GUID: ce2a5907-6034-4bb0-a45d-e30e90c17483

DHCP: Enabled

IPAddress: 169.254.134.67

NetworkMask: 255.255.0.0

IPV6Address: fe80:0000:0000:0000284e8643

IPV6NetworkMaskPrefixLength: 64

HardwareAddress: 08:00:27:00:28:da

MediumType: Ethernet

Status: Up

VBoxNetworkName: HostInterfaceNetworking-VirtualBox Host-Only Ethernet Adapter**

I tried this:
VBoxManage hostonlyif ipconfig "VirtualBox Host-Only Ethernet Adapter" --ip 10.20.0.2 --netmask 255.255.255.0

still nothing happens

Please Help

[BillG]

That sounds a bit odd. Incidentally, why do you want to change the IP address of the host only adapter in the host? I really can't think of any reason to do it.