NViewOPC 10.2 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. This free program is a product of N-Tron. The most popular versions among the software users are 10.2, 9.7 and 9.6. NViewOPC relates to Internet & Network Tools. The common filename for the program's installer is NViewOPC.exe. We recommend checking the downloaded files with any free antivirus.
From the developer:
N-View OPC Server Software can be used with N-TRON 200, 300, 400, 500, and 900 Series Switches with the N-View firmware option. The program provides switch and port status information for all N-View capable switches that will be displayed using popular OPC client HMI Software Packages.
You may want to check out more software, such as FTPGetter, FTP Commander Deluxe or Check Point VPN-1 SecuRemote/SecureClient NGX R60 HFA1, which might be similar to NViewOPC.