This list can contain copies of itself with different Redirect Numbers that are stored in the Registry. If you open this in Regedit the list can take a long time to fully populate and will display a perpetually loading icon until the editor is closed. Over time, Terminal Servers and RemoteApp servers can build a long list of redirected printers. Invalid, unusable redirected printers may appear in a Remote Desktop Services session causing slowness. Printer Redirection is a feature that allows a local printer to be mapped to a remote machine, and allows printing across a network.
