A guest operating system can be Windows, Linux, and other commonly used operating systems.
To see a list of the supported guest operating systems, search the online VMware Compatibility Guide on the VMware Web site.
Workstation Player is not listed, but the information for Workstation Pro is applicable to Workstation Player. Operating systems that are not listed are not supported for use in a virtual machine.
See the VMware Guest Operating System Installation Guide for information on installing the most common guest operating systems.