VMware supports the OVF standard on the following platforms:
OVF support is built into the vSphere Client that installs from, and is compatible with vCenter 5.0 and ESXi 5.0, vCenter 4.0 and ESX 4.0. It is also built into the vSphere Client that installs from and is compatible with VirtualCenter 2.5 and later, and ESX 3.5 and later. The vSphere 5.1 Web Client includes the 3.x version of the VMware OVF Tool as part of the Client Integration Plug-in.