The Keyboard or the Barcode Decoder do not Work

Operating system: Windows 2000/XP

Problem:

A keyboard connected after booting and/or a connected barcode reader do not work

Description:

If Windows 2000/XP is booted without a keyboard being connected, the keyboard driver is not loaded correctly.

As barcode signals are also normally read via the keyboard interface, barcode readers are also affected and will not work.

The integrated barcode decoder is also affected.

Solution:

System Requirements: Windows2000 min. Service Pack 2 / Windows XP

The following registry entry will solve the problem:

Under HKLM\System\CurrentControlSet\Services\i8042prt\Parameters a DWORT value is added with the description " Headless " and a value of " 1 "

Please note that this entry will not work under Windows 2000 with an installed Servicepack smaller than 2.

This entry causes the keyboard driver to be loaded during booting evenwith no keyboard connected.

Attention:

The keyboard connected later must be "hotplug capable" to exclude the threat of destroying the keyboard or the keyboard controller in the IPC. If in doubt, please consult the documentation for your keyboard.