With Client Plug-In Management you can monitor plug-in downloads, deployments, upgrades, and undeployments.

From the vSphere Client, you can monitor vCenter Server client plug-ins using the Recent Tasks pane, the global Tasks view, or the Administration > Client Plugins view. In addition to monitoring installation progress, you can troubleshoot installation failures and plug-in incompatibilities. You can also enable and disable installed plug-ins.