You can enable and configure vApp functionality for virtual machines that are not within a vApp. When a virtual machine vApp options are enabled, you can configure OVF properties, use the OVF environment, and specify IP allocation and product information for the virtual machine.
You can configure and modify the authoring vApp options of a virtual machine to specify custom information that is preserved and used when you export the virtual machine as an OVF template. If you later deploy that OVF template, the information that you specified is available for editing in the deployment vApp options of the virtual machine.
For a virtual machine with vApp options enabled, the authoring vApp options are preserved when you export the virtual machine as an OVF template and those options are used when you deploy a new virtual machine from that template. Deployment vApp options are available for virtual machines that are deployed from OVF templates.