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Windows XP Embedded comes equipped with an Enhanced Write Filter (EWF) which prevents system changes from being saved. This must first be disabled before the system can be configured to run XrayVision. To disable EWF, first log in as Administrator by doing the following:
Right-click on the green lock icon 
next to the clock, and select Disable.
Click Yes to make the change, and then click Yes to restart the computer. After
the computer is restarted, a red lock icon 
next to the clock indicates that
EWF is now disabled.
First, make sure your system is updated to the latest BIOS and XP versions by choosing Start > HP System Information. The latest version of the system BIOS at the time of this writing is 786R2 1.02, and Windows XP Embedded (XPe) 5.1.2600 Service Pack 2. Updates to the BIOS and Windows XP are available from HP and Microsoft through their respective websites.
The thin client includes a RAMDisk where temporary files can be stored to the memory. NOTE: Any files stored to the RAMDisk will be erased whenever the thin client is restarted. By default, the RAMDisk is set up to store temporary internet files, printer queue, and other user/system temporary files. The size of the RAMDisk is initially set at 16 MB. You should increase the size of the RAMDisk if you plan to install software locally on the thin client, such as Acrobat Reader, Instant Messenger, printer drivers, or VNC or VPN software. NOTE: Most software should be run from the server, rather than being installed on the thin client, because the thin client contains very little storage space.
Increase the size of the RAMDisk by logging in as Administrator and choosing Start > Control Panel. Double-click HP RAMDisk Manager. Drag the slider to increase the size of the RAMDisk (maximum is 64 MB) and click OK. This will require you to restart the computer again.
If needed, you can also disable the third party HP Sygate Security Agent.
Log in as Administrator, right-click on the Sygate icon 
next to the clock,
and choose Disable. You can also prevent it from loading at system startup
by right-clicking the Sygate icon and choosing Options. Then, uncheck the box
next to Automatically load HP Sygate Security Agent service
at startup. After
restarting the computer, the Sygate Security Agent will no longer be loaded.
Configure the thin client's network settings to join your server's network. These settings will be different for every network; your network technician will know what settings to use. For example, if you use the Dynamic Host Configuration Protocol (DHCP), your thin clients can automatically obtain IP addresses and default gateways from the DHCP server.
At this time, you can also set up your printer for use on the thin client. Choose Start > Printers and Faxes. Click on Add Printer and follow the instructions. If your printer is directly connected to the thin client, you may need the printer's drivers to be available on a USB "thumb" drive, or in a shared directory on the server.
Next, you should configure any display settings, such as screen size, background, color quality, or other features as desired. Also make sure to change the clock to the current time.
Once your system is fully customized, log off Administrator. It should automatically log you in to the normal user account. Now you can create shortcuts to the Apteryx software. Choose Start > Network Connections. In the left panel, under Other Places, choose My Network Places, and then under Other Places again, click Entire Network. Double-click on your network - most likely, Microsoft Windows Network - and then navigate to your server's shared Apteryx directory. If you own XVLite, double-click XVLite.exe, and choose Preferences; then click Create Local Shortcuts. For XrayVision, double-click XVAssistant.exe, and go to Help > Create Local Shortcuts. This will place shortcuts to the program on your desktop, and in the Start menu. If you use Name Grabber to bridge patient information from your practice management software, also double-click Name Grabber.exe. It will ask you to start the software with Windows. Click Yesto automatically load Name Grabber when Windows starts.
After all of these steps have been done, you need to re-enable EWF. Log back
in as Administrator, and right-click the red lock . Choose Enable, and then
click Yes to restart. The system should restart, automatically log in as a
user, and display a green lock , indicating that EWF is enabled.
