: Some versions require an SDR file for registration; you typically open the software and select "Register using SDR file" from a connected USB drive to unlock all functions .
If you are looking for the software, here are the common ways it is currently distributed: Download SOKKIA Link rar
If by "good paper" you are referring to a manual or a scholarly guide on how to use Sokkia Link for data processing, these are often found as PDFs on manufacturer sites or academic repositories. For example, Software Informer provides basic version info and community discussions that can serve as a starting point for troubleshooting . : Some versions require an SDR file for