When you use Remote Desktop Connection or the Terminal
Services Client version 4.0 or 5.0 to connect to another Windows-based computer
from a computer that is not running Windows Server 2003, your local printers
may not be redirected. As a result, your local printers are not available in
the remote desktop or terminal services session.
For example, if your
Windows XP-based computer has a multifunction print device using a DOT4 port,
it may not be redirected in a remote desktop session to a Windows 2000- or
Windows Server 2003-based computer.
This problem occurs because the printer port does not begin
with COM, LPT, or USB. By default, printer port names that do not begin with
COM, LPT, or USB are only redirected in Windows Server 2003. By default,
multifunction print devices may not be redirected unless you are running
Windows Server 2003 on your local computer because they use DOT4
ports.
To resolve this problem on a computer that is not running
Windows Server 2003, force all ports (including DOT4) on the client computer to
be filtered for redirection. To do this, add a DWORD value named
FilterQueueType to HKEY_CURRENT_USER\Software\Microsoft\Terminal Server
Client\Default\AddIns\RDPDR and set its value data to FFFFFFFF.
Follow these steps, and then quit Registry Editor:
- Click Start, click Run, type regedit, and then click OK.
- Locate and then click the following key in the registry:
HKEY_CURRENT_USER\Software\Microsoft\Terminal Server Client\Default\AddIns\RDPDR
- On the Edit menu, point to New, and then click DWORD Value.
- Type FilterQueueType, and then
press ENTER.
- On the Edit menu, click Modify.
- Type FFFFFFFF, and then click OK.
This enables all ports on the client to be
redirected.
To work around this problem on a client computer that
has a multifunction print device, change the port that the multifunction print
device uses from DOT4 to an LPT port.
For example, to configure a
multifunction print device to use an LPT port on a Windows XP-based computer,
follow these steps:
- InControl Panel, openPrinters and Faxes.
- Right-click the local printer that is not redirected, and
then click Properties.
- Click the Ports tab, click an LPT port, and then click Apply.
The printer should now appear next to that
port. - Close the Printer Properties window, and then reconnect by
using Remote Desktop.
Important When a multifunction printer is using a standard LPT port instead
of the DOT4 port, it loses its multifunction capabilities, such as scanning,
faxing, or copying. To regain the multifunction capabilities, the print device
must use the DOT4 port.
This
behavior is by design.
To view the port name for your printer, or to determine if
the device uses a DOT4 port, view the properties of that printer, and then
click the
Ports(or the
Details) tab.
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