Keysight IO Libraries Suite 2025

This version continues support for features described in the previous versions but with the following changes.

Defect fixes:

• Resolved an issue where Windows on ARM64 was not functioning
• Fixed missing menu items in IO Control after upgrading.

What's new?:

• Added support for the latest versions of Shared Ccpmponents:
  • IVI Shared Components 3.0.3
  • IVI.NET Shared Components 2.0.1
  • VISA Shared Components 8.0.0
  • VISA.NET Shared Components 8.0.1
• .NET 6+ VISA.NET support
• CSV file export capability in IO Monitor
• DMA steering ID setting support for the Versal FPGA module
• Keysight Distributed Infrastructure is updated to version KDI 3.8.24

Known Issues:

Missing Components in VISA COM Applications

• Ivi.Visa.Interop.dll is missing in the 32-bit VISA COM applications. The workaround to fix the issue is as follows:
  • Install .NET Framework 3.5
    • You can install .NET Framework 3.5 using the IO Libraries Suite installer with the net35 directive. For example: IOLibSuite_version.exe /s /z"typical;net35"
  • Uninstall the VISA shared component.
  • Repair IO Library Suite to install VISA shared component.
• Another way to fix the issue is as follows:
  • Open Visual Studio developer command window with elevated privilege 
  • Change directory to C:\Program Files (x86)\IVI Foundation\VISA\VisaCom\Primary Interop Assemblies
  • Run "IviPiaRegistration.bat"

Backward Compatibility

• VISA.NET applications using Ivi.Visa.dll or Keysight.Visa.dll and targeting .NET Framework 2.x or 3.x will no longer work with IO Libraries Suite (IOLS) 2025, as it only supports .NET Framework 4.x for VISA.NET. To resolve this issue, you can:
  • Rebuild your application to target .NET Framework 4.x (recommended).
  • Modify your application's configuration file by explicitly setting <supportedRuntime> to "v4.0" in yourApplication.exe.config:

<?xml version="1.0" encoding="utf-8"?>

<configuration>

   <startup>      

      <supportedRuntime version="v4.0"/>

   </startup>

</configuration>

• This ensures compatibility with IOLS 2025.

Thycotic-Delinea Privilege Manager Tool Interference

• We've identified issues when installing or upgrading IO Libraries Suite (IOLS) on systems where the Delinea tool is used. These issues may include failures during installation or upgrading certain IOLS components.
• Action Required: If you encounter problems with IOLS installation or upgrades while using Delinea, please contact Keysight Support for assistance. 

Keysight Secure Instrument Communication Expert

Keysight Secure Instrument Communication provides a secure way to control instruments using HiSLIP protocol revision 2.0 (r2). HiSLIP r2 enables secure connections, which are achieved using the Transport Layer Security (TLS) for encryption and decryption. HiSLIP r2 also enables authentication: the server (instrument) authenticates its identity by sending an X.509 certificate to the client (VISA library) when the TLS connection is established. The client authenticates to the server using a server-supported SASL (Simple Authentication and Security Layer) mechanism.

The challenges to establish a secure connection are: how to proffer the required certificates and authentication information, how to authenticate server/client mutually, and how to configure server/client compatibly, etc.

To overcome the challenges and support secure communication between instruments and test stations, Keysight is providing updates to certain instruments and Keysight IO Libraries Suite. Keysight also provides a configuration tool called Keysight Secure Instrument Communication (SIC) Expert to configure both instruments and test stations to perform secure communication.

Keysight Secure Instrument Communication system consists of three main elements:

• Keysight instrument that supports SIC
• Keysight IO Libraries Suite (installed on test station)
• Keysight Secure Instrument Communication Expert (SIC Expert)