Guys we need
1. Obtain and install Oracle VM VirtualBox Release 4.2.18 or later.
A. VM VirtualBox can be downloaded from: VirtualBox.org.
2. For Oracle VM VirtualBox Release 4.2.24 and higher, users need to create a new Environment Variable (User Variable): VBOX_INSTALL_PATH
i. Start > Control Panel > System and Security > System > Advanced system settings > Environment Variables >
Create new user environment and put this name: VBOX_INSTALL_PATH
ii. The value for the variable is the local VirtualBox install folder, typically "C:\Program Files\Oracle\VirtualBox\"
INSTALL HP NETWORK SIMULATOR
and Run as Administrator.