vSphere 5 added the GuestOperationsManager object to the SDK. The initial vSphere 5 plugin for VCO did not include any default library functions that leverage this new SDK object.
The upcoming VCO release will include library workflows around the GuestOperationsManager object, but this package may be useful as an interim solution for those working with GuestOperationsManager today.
Please note, this only works against vSphere 5 SDK targets and does not support the earlier VIX plugin for previous versions of vSphere.
Consulting Architect, Integration & Automation