Start your web browser, go to https://vcenter server name or IP/mob
Click Content.
Click ExtensionManager.
Select and copy the name of the plug-in you want to remove from the list of values under Properties. For a list of default plug-ins, see the Additional Information section of this article.
Click UnregisterExtension. A new window appears.
Paste the name of the plug-in and click Invoke Method. This removes the plug-in.
Close the window.
Refresh the Managed Object Type:ManagedObjectReference:ExtensionManager window to verify that the plug-in is removed successfully.

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This application supports

ESX Server 3.5

VirtualCenter 2.5

ESX Server 3i

ESX Server 4i

VirtualCenter 4.x

ESX 4.x, VirtualCenter 5.0

 VirtualCenter Appliance, ESX 5.0, VirtualCenter 5.1, ESX 5.1, VirtualCenter 5.5 and ESX 5.5.

Documentation

Full Article

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