VIX HostConnect compatbile with VMWare Player hosts?

From looking at the API docs for HostConnect,

hostType

VIX_SERVICEPROVIDER_VMWARE_SERVER
or
VIX_SERVICEPROVIDER_VMWARE_WORKSTATION.

I'm assuming this means that a VIX client cannot connect to a Virtual Machine instance running in a VMWare Player host?    Just posting the question to get confirmation that this is not possible.  This may effect how many workstation licenses we would need to purchase.   Was hoping to purchase a single Workstation license, and run VIX automation against multiple Player hosts/guests.

Thanks,