Hi,
best approach is to use the virtaul aplliance provided by APC "PowerChute Network Shutdown v4.0 for Virtualization" (ESXi flavour), see: Software / Firmware
Configure the network card to your needs, e.g. give it a static IP which is reachble from inside the virtual appliance/VMWare.
Afterwards deploy the OVA/OVF included in the tar.gz in VMWare and copnfigure it afterwards on the console of the VM.
Thereafter a web interface for the appliance is up and running where you can configure your shutdown events.
Documentation and further information is found here: http://www.apc.com/products/resource/include/techspec_index.cfm?base_sku=SFPCNS40-V&tab=software
Only thing I'm not sure about is if v4.0 is already tested with VMWare 6, but generally it should work.
You anyway have to configure your host's startup/shutdown settings (according to the 2 Win 2012 VMs) for the appliance to work as expected.
cykVM
