Terminal Services Client Registry Editor: Miscellaneous tab

These values are set in the following registry keys: HKEY_CURRENT_USER \Software\Microsoft\Terminal Server Client\ HKEY_CURRENT_USER\Control Panel\Desktop\

Miscellaneous
Shadow Bitmap Enabled	Controls use of backup bitmap. A shadow bitmap is a copy of the screen memory maintained on the client to allow faster response to delta operations, like minimizing a window.
Dedicated Terminal	0 - not a dedicated terminal, 1 - dedicated terminal. Dedicated terminal tells you that the Terminal Services client will always have a particular application window, and it won't get overlaid. For example, this would when it is used to serve up a particular application, rather then a desktop. Knowing this allows you to optimize other options, such as turning off the shadow bitmap.
Order Draw Threshold	Number of orders to draw into the shadow bitmap before transferring.
ForegroundLockTimeout	Sets the duration for which the foreground focus can not be wrested from the current holder after an action.
Restore button	Restore default settings on this tab.