Note: NI LabVIEW SignalExpress Tektronix Edition is no longer offered by Tektronix. This FAQ is "historical only". National Instruments SignalExpress Tektronix Edition is a measurement automation tool that allows SignalExpress to control a Tektronix oscilloscope, function generator, DMM, or frequency counter and take consecutive automatic measurements. In order to use SignalExpress, you’ll need to download the trial version first and then use the license manager to enter the SignalExpress serial number later after you have purchased it. The trial download is available on our website at /node/55591 Follow the link and click Download File. This download link will be unavailable if you don’t have a Tektronix account or if you aren’t logged in. The executable file is rather large and may take a while to download depending on the speed of your internet connection. After the file is finished downloading, go to your downloads folder and open the self-extracting executable file. Unzip the file and allow the program to make changes on your hard drive. The NI SignalExpress Window will pop up. Click Next and you will be at the User Information window. Fill out the FULL NAME and ORGANIZATION fields. There are two installation options below. The first will give you the option to install the full version with a serial number. This is where you enter the serial number of the software itself if you have it. A trial version of SignalExpress is often included with our scopes, and because of this many people enter the serial number of the scope they purchased. Entering this incorrect serial number will result in a confusing loop, so in order to avoid this altogether, simply click on the install NI LabVIEW SignalExpress Tektronix Edition LE (limited edition) and click next. Select the desired install location and click Next. Read and accept the next two licensing Agreements, review the summary and click Next. Wait until the application has finished installing, uncheck the Launch Activation Wizard box and then click Finish. The installer will then prompt you to restart your computer. After restarting your computer, open SignalExpress, and click Continue to begin the trial version of SignalExpress. You will have 30 days from this point to use SignalExpress normally.