From GridTrak

USB Boot Drive

• USB Boot Drive Setup with HP Utility

Phantom USB Devices - Windows 7 (maybe others)

Reference: FTDI AN_119 Drivers Installation Guide (for USB-RS232 converters)

Devices that have been installed on a system but are not currently available are referred to as "phantom devices". These devices are not usually displayed in the device manager, but can be made to be displayed as though they are attached. This allows device properties to be changed or devices to be uninstalled via Device Manger even though the device is not physically connected to the PC.

To display phantom devices in Device Manager, a new system variable is required. Open "Control Panel > System" then select the "Advanced" tab and click "Environment Variables". In the System Variables section (NOT THE USER VARIABLES SECTION), click "New..." to display the following window:

Create a new System Variable called "DevMgr_Show_NonPresent_Devices" and set the value to 1, then click OK.

Open the Device Manager ("Control Panel > System" then select the "Hardware" tab and click "Device Manager…", or "Control Panel > Device Manger" in Windows 7) and select "View > Show Hidden Devices". Device Manager will then show all hidden and phantom devices available on that PC as shaded

RDP Printing

Reference: Microsoft KB 302361 Jan 31, 2007 Rev 4.5

SYMPTOMS
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.

CAUSE
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.

RESOLUTION
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.

Follow these steps, and then quit Registry Editor:

1. Click Start, click Run, type regedit, and then click OK. 
2. Locate and then click the following key in the registry:
   HKEY_CURRENT_USER\Software\Microsoft\Terminal Server Client\Default\AddIns\RDPDR
3. On the Edit menu, point to New, and then click DWORD Value. 
4. Type FilterQueueType, and then press ENTER. 
5. On the Edit menu, click Modify. 
6. Type FFFFFFFF, and then click OK. 

This enables all ports on the client to be redirected.

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Windows