4 - LabJackUD High-Level Driver

LabJackUD High-Level Driver Overview

LabJackUD is the high-level Windows driver for the U3, U6 and UE9. LabJackUD is also referred to as UD and LJUD. If using Linux or Mac OS X, use the Exodriver and the low-level functions.

The low-level U6 functions are described in Section 5, but most Windows applications will use the LabJackUD driver instead.

The latest version of the driver requires a PC running Windows XP or newer. It is recommended to install the software before making a USB connection to a LabJack.

The download version of the installer consists of a single executable. This installer places the driver (LabJackUD.dll) in the Windows System directory, along with a support DLL (LabJackWUSB.dll). Generally this is

c:\Windows\System\ on Windows 98/ME
c:\Windows\System32\ on Windows 2000/XP and 32-bit Windows Vista/7/8/10
c:\Windows\System32\ (64-bit drivers) and c:\Windows\SysWOW64\ (32-bit drivers) on 64-bit Windows Vista/7/8/10

Other files, including the header and Visual C library file, are installed to the LabJack drivers directory which defaults to c:\Program Files\LabJack\drivers\ on 32-bit Windows and c:\Program Files (x86)\LabJack\drivers\ on 64-bit Windows.