Go to the official web page, select your version of Windows 7, identify your product and select the model. After that, click the Download button, save the file to your computer and install it following the provided steps. Also, since PaperPort Se 8.0 is not developed for Windows 7 platforms, I suggest you use Paperport 11SE. After you download and install the application, send an email with DocuPen serial number to csr@planon.com
and wait for instructions.