If you are reading this from the site download page, note that all the files can be downloaded within the archive .zip file. The file is typically marked with an icon which includes red markers - in case the file extension cannot be read due to filename length. Temporary instructions for using the new Model 301/302 developer's interface. This interface is currently available only to users of LabView. Instructions: 1.) If you haven't already installed the Model 301/302 device, please download the most recent installation files for your particular operating system at: http://www.lawsonlabs.com/Download/Manuals-Drivers/Model_301_302/Install/WinXP_2k_NT/Install.zip 2.) The LL_USB2k.DLL included with this distribution must match a particular device driver version which is also included in this distribution in the "!!_Misc" folder. Please be aware that whenever the Model-30x hardware is installed for the very first time a particular installation proceedure must be followed. Explanation of that proceedure can be found in that "Install.zip" archive or other Model-30x installation files you may have received either with hardware distribution or our website download. After an initial installation, all that is required for a driver update is to copy the newest .sys driver file over the old in your windows\system32\drivers\ directory, and then unplugging the Model-30x device and then plugging it back in so the old driver can unload from memory and the new one load in it's place. Please note that if you overrite an old .sys file with a new one and any Model-30x device is plugged in the previous driver will continue to be used since it remains in memory until all of the Model-30x devices have been disconnected. 3.) Be sure your Model-301/302 is connected. If you had it connected when you over-wrote the old driver with the new, you will need to disconnect it and wait a few seconds before reconnecting it. That process allows the new driver to load into memory. If you fail to do that step, even though the new driver is on your disk, any previous version of the driver that was loaded into memory will be used instead. Load and run, "Main_JustConnectOneExample.vi"