Windows Server 2008 holds some major key benefits in Terminal Services technology. Some of these are discussed in various articles on my site (see Related Articles section below). One of these features is Display Data Prioritization.
Display Data Prioritization in Windows Server 2008 Terminal Services allows for automatic control over the virtual channel traffic that is passed between the client (RDP 6.0) and the server (running Windows Server 2008). This enables better performance and user experience because display, keyboard typing, and mouse movement data is given a higher priority over other virtual channel traffic, such as printing, clipboard operations or file transfers. This prioritization is designed to ensure that your screen performance (user experience) is not affected by bandwidth intensive actions, such as large print jobs.
In Windows Server 2008 Terminal Services, the default bandwidth ratio is 70:30. This means that display and input data will be allocated 70% of the bandwidth and all other traffic, such as print jobs , clipboard or file transfers will be allocated 30% of the bandwidth.
Changing the Display Data Prioritization
Warning! This document contains instructions for editing the registry. If you make any error while editing the registry, you can potentially cause Windows to fail or be unable to boot, requiring you to reinstall Windows. Edit the registry at your own risk. Always back up the registry before making any changes. If you do not feel comfortable editing the registry, do not attempt these instructions. Instead, seek the help of a trained computer specialist.
Display Data Prioritization can be changed by making changes to the Registry of the server.