Winpower UPS Software VMware
This is mostly in reference to their Linux documentation: Installation and configuration for Winpower in the VMware
Winpower when installed using the Linux binaries includes a few extra perl scripts which supports shutting down VMware environments.
It does however also require you have the following perl lib installed on the system
VMware::VIRuntime. Which can be aquired by installing VMware vCLI binaries.
The following documentation aids installing vCLI: Installing vCLI