# C or .NET Integration

VisionPro Deep Learning provides a C library, which can be found in your installation directory (C:\Program Files\Cognex\VisionPro Deep Learning\2.0\bin), under the name vidi_51.dll. The associated header files are in the following directory:

- C:\Program Files\Cognex\VisionPro Deep Learning\2.0\Develop\include

For convenience and easier integration, VisionPro Deep Learning also distributes a .NET library that wraps all of the C library methods in an object oriented approach. The .NET library is distributed as NuGet packages, which are in the following directory:

- C:\ProgramData\Cognex\VisionPro Deep Learning\2.0 \Examples\packages

The API reference guides are located in the following directory:

- C:\Program Files\Cognex\VisionPro Deep Learning\2.0\Develop\docs

In addition, there are several examples to review in the following directory:

- C:\ProgramData\Cognex\VisionPro Deep Learning\2.0\Examples

Note:

- In the above directory paths and file names, 2.0 refers to the revision of the VisionPro Deep Learning software.
- Cognex highly recommends that you integrate the .NET library, unless you are forced to integrate the C library.