The Measurement Studio DAQ ActiveX controls do not work with DAQmx.
However, there are fully featured .NET and C++/MFC class libraries that you can use to program DAQmx devices. The .NET library is available directly with the library and does not require the purchase of Measurement Studio. If you require VB6 support, there is a type library that ships with the driver that helps you use the DAQmx C API in VB6.
The Measurement Studio product adds value on top of the driver, by way of the DAQmx Assistant, which is a tool that integrates into Visual Studio as a designer. You can interactively configure your DAQmx tasks and channels in the Assistant and it will automatically generate the C#, VB.NET, or C++ code you would otherwise have to code manually to create and configure your tasks and channels.
Furthermore, Measurement Studio includes tools that generate example code that show you how to read from or write to your tasks and how to display the data on a user interface. In Measurement Studio 8.0.1, we made substantial improvements to this mechanism for C# and VB.NET in Visual Studio 2005.