Recently to help a customer to do an offline plug-in, because the traffic limit and the number of hanging a lot so you need to use the virtual machine most shunt.
The VM has been used before but found that if the host's VPN disconnection restarts after the virtual machine inside the site will take a long time to restore the network, resulting in offline time is too long.
Try to use VirtualBox for this reason, and finally decide to use VirtualBox.
This product is relatively simple compared to VMS, but it is very good in real life.
1. Same as Windows XP, single CPU, memory 128, regardless of boot speed and operation are smoother than VM.
2. The network also in the case of NAT, after the drop line as long as the host re-connected immediately can be connected, the effect is very satisfactory.
The drawback is that there is no container management, resulting in a lot of programs that seem a bit confusing, but still acceptable.
Comparison of Vmware workstation and Virtaulbox