Downloading NI VISA 1.0 from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this software available. The following versions: 5.0 and 1.0 are the most frequently downloaded ones by the program users. This free program was originally developed by Inventive Engineering. NI VISA relates to Development Tools. We recommend checking the downloaded files with any free antivirus.
From the developer:
The Virtual Instrument Software Architecture (VISA) is a standard for configuring, programming, and troubleshooting instrumentation systems comprising GPIB, VXI, PXI, Serial, Ethernet, and/or USB interfaces. VISA provides the programming interface between the hardware and development environments such as LabVIEW, LabWindows/CVI, and Measurement Studio for Microsoft Visual Studio.
You may want to check out more software, such as NI-VISA, NI-VISA Runtime or NI-FBUS Configurator, which might be similar to NI VISA.
Device Assistants