The example project is in the examples\nativeExample sub-directory of the Performance Validator installation directory.
If the directory is not present, reinstall your software and choose custom or full installation to include the examples.
There are a variety of solutions and projects for different versions:
•nativeExample.dsp for Microsoft® Developer Studio® 6.0
•nativeExample_VSx_x.sln for Microsoft® Visual Studio / .net
There are a small number of configurations in each project:
•Debug / Release
•DebugStatic / ReleaseStatic
You might find you can't build the example application with Express versions of Visual Studio because it doesn't provide all the necessary libraries.
If that's the case, try searching for the missing libraries in one of the freely available Windows SDKs from the Microsoft website.
If you use Visual Studio Express to build your own application, Performance Validator will still work with it just fine.