Citrix Provisioning Services (PVS) permits to have a single instance image management of XenApp and/or XenDesktop VMs. This means one only has to update a single image which is then streamed to hundreds, or thousands of desktops. No more unreliable software deployments across your desktop fleet, just install the new software once on the master image and when the PVS clients (‘target devices’ in PVS speak) reboot, they get the updated image with the new software.