© National Instruments Corporation 5 NI USB-9233 User Guide and Specifications
ANSI C without NI Application Software
The NI-DAQmx Help contains API overviews and general information 
about measurement concepts. Select Start»All Programs»National 
Instruments»NI-DAQ»NI-DAQmx Help.
The NI-DAQmx C Reference Help describes the NI-DAQmx Library 
functions, which you can use with National Instruments data acquisition 
devices to develop instrumentation, acquisition, and control applications. 
Select Start»All Programs»National Instruments»NI-DAQ»
NI-DAQmx C Reference Help.
.NET Languages without NI Application Software
With the Microsoft .NET Framework version 1.1 or later, you can use 
NI-DAQmx to create applications using Visual C# and Visual Basic 
.NET without Measurement Studio. You need Microsoft Visual Studio 
.NET 2003 or Microsoft Visual Studio 2005 for the API documentation to 
be installed.
The installed documentation contains the NI-DAQmx API overview, 
measurement tasks and concepts, and function reference. This help is fully 
integrated into the Visual Studio .NET documentation. To view the 
NI-DAQmx .NET documentation, go to Start»Programs»National 
Instruments»NI-DAQ»NI-DAQmx .NET Reference Help. Expand 
NI Measurement Studio Help»NI Measurement Studio .NET Class 
Library»Reference to view the function reference. Expand NI 
Measurement Studio Help»NI Measurement Studio .NET Class 
Library»Using the Measurement Studio .NET Class Libraries to view 
conceptual topics for using NI-DAQmx with Visual C# and Visual 
Basic .NET.
To get to the same help topics from within Visual Studio, go to 
Help»Contents. Select Measurement Studio from the Filtered By 
drop-down list and follow the previous instructions.
Device Documentation and Specifications
NI-DAQmx includes the Device Document Browser, which contains 
online documentation for supported DAQ, SCXI, and switch devices, such 
as help files describing device pinouts, features, and operation, and PDF 
files of the printed device documents. You can find, view, and/or print the 
documents for each device using the Device Document Browser at any 
time by inserting the CD. After installing the Device Document Browser, 
device documents are accessible from Start»All Programs»National 
Instruments»NI-DAQ»Browse Device Documentation.
Note You can also download these documents at ni.com/manuals.