Finding a clean download link for legacy software can be difficult. Many sites claim to offer the software but lead to broken links or questionable files.
Because we cannot host files directly, we recommend searching for the software on the official Topcon/Sokkia support legacy pages or reputable surveying forums (such as SurveyorConnect).
Search Tip: When searching on Google, use the query: Sokkia ProLink 1.5 download site:sokkia.com or Sokkia ProLink 1.5 archive. This usually yields the cleanest installer files.
Transmission Pro is the modern, 64-bit replacement for ProLink. It officially supports Windows 10/11 and USB connections. It is not free (approx $150–$300), but it works out of the box. sokkia prolink 115 software free download work
Several survey forums, file-sharing sites, and "driver" websites claim to host ProLink 115 for free. Examples include:
The Danger: These files often contain:
If you choose this route, always:
Sokkia ProLink 115 is a utility software that acts as a bridge between your computer and older Sokkia total stations. Unlike modern cloud-based solutions, ProLink uses a serial (RS-232C) or USB-to-Serial connection.
If you cannot get the free download to work, do not waste hours troubleshooting. Consider these proven alternatives.
Yes, but only if: You have an old PC running Windows 7 or XP, a genuine Sokkia serial cable, and you found the installer from a trusted source (like an original CD). Finding a clean download link for legacy software
No, if: You are on Windows 11, using a generic USB cable, or cannot afford hours of trial-and-error. In these cases, the "free download" will cost you more in lost productivity than buying modern software.
Sokkia (now part of Trimble after acquisition) does not officially offer ProLink 115 as a free public download through their main website. ProLink software is typically provided: