When you’ve installed a Remote Desktop Services or XenApp servers on your VMware environment, you don’t want to enable the VMware Tools tray icon. By default there’s an tray icon for all your users. Using the following registry key, the tray icon will disappear.
[HKEY_LOCAL_MACHINE\SOFTWARE\VMware, Inc.\VMware Tools]
Now the VMware Tools tray icon is gone for all the users! 😉