Downloading NsProto 1.1 from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this software available. Commonly, this program's installer has the following filename: NsProto32.exe. The most popular version among NsProto users is 1.1.
The actual developer of the free program is The Navas Group. The program relates to Internet & Network Tools. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software.
From the developer:
NsProto is a Win32 (32-bit Windows) application designed as an OLE Automation protocol proxy server for Netscape Navigator. It is able to invoke 16-bit applications. The architecture of NsProto is flexible enough to work with many applications, such as Pegasus Mail for Windows
You may want to check out more software, such as Veeam FastSCP, CrossFTP Server or Paessler SNMP Helper Freeware Edition, which might be similar to NsProto.