Plug-In Caching
When the vSphere Client installs a plug-in, it downloads the plug-in manifest and caches it. The cached copy is re-used whenever the vsphere-ui process restarts.
After a plug-in has been unregistered, the vsphere-ui service detects the change during its next restart. At that time, the cached copy of the plug-in manifest is deleted from the cache.
When a plug-in is upgraded, the vsphere-ui service detects the change during the next restart or user login. At that time, the old plug-in version is undeployed, its cached copy is removed, and the new plug-in version is deployed.
Note: While the process of
uninstallation takes place, the vSphere Client UI does not wait for the process
to complete. You might need to refresh the browser window after enough time has
elapsed to complete the uninstallation. The vSphere Client currently does not
display notifications after uninstalling remote plug-ins.