National Instruments provides a .NET API for NI-VISA, which can be used without Measurement Studio. You can find additional information about how to get started using NI-VISA in .NET from the NI-VISA online help, in the page entitled "Creating a .NET Application without Measurement Studio".
We also provide several example programs for both VB.NET and C#. You can find them in the "C:\Program Files\National Instruments\MeasurementStudioVS2003\DotNET\Examples\Visa" directory. (this directory might be different on your system if you have Measurement Studio and you installed it to a non-default location.)
Hope this help get you started. Please don't hesitate to post with any other questions you might have about using National Instrument products in VB.
