You can configure a Group Policy Object (GPO) that gets applied to the desired user accounts to do this. In Group Policy Editor (GPE), navigate to User Configuration\Windows Settings\Administrative Templates\Desktop\ Active Desktop and enable Active Desktop Wallpaper. In the Properties dialog box of this policy, you specify the full pathname of a .jpg, .bmp, or .html file and select whether to centre, stretch, or tile the image. For this policy to work, you must also Enable Active Desktop, which you'll find in the same policy folder.
If you have a PC with reasonable amount of Memory installed (lets say 512MB or a 1Gb) then this little registry tweak can help extract a little bit of an extra performance. Windows Kernel loads and runs from the memory and hence allows faster application execution. However, there can be a time when the kernel components can be paged onto the virtual memory (Pagefile.sys) on the hard disk. This can directly impact the performance. The following resitry tweak will help you restrict Kernel to run from the memory and not paged out to the Virtual memory. 1. Click Start – Run, type “regedit” 2. Navigate to
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management] HKEY_LOCAL_MACHINE \SYSTEM \CurrentControlSet \Control \Session Manager \Memory managment3. In the right-pane, look for “DisablePagingExecutive” and set its value to “1″ 4. Close the Registry Editor and restart This should restrict Windows Kernel to the memory alone and will not be paged to the Virtual Memory on the hard disk.