VMware Player (formerly VMware Workstation Player as Version 12) is a freeware virtualization software from VMware, Inc. (a division of EMC Corporation) for personal non-commercial use. VMware Player can run virtual appliances and can also create virtual machines since version 3.0. It uses the same virtualization core as the VMware Workstation software. In VMware Workstation 5.5.x, the Version Requires having Serial Key to work, unless the VMware Player requires to open Virtual Machine to work.