On Windows 64 installation copy the .dll file from x64 directory to
Windows System directory.
On Windows 32 installation copy the .dll file from x86 directory to
Windows System directory.

On Linux must have a running OpenCV 2.4.9 installation with Java option. 

The Cascade Files are needed for detections, detection at Video Files
works only on Windows 64 installations. 

After start the programm select the location of the "casacadefiles" 
Directory with "Cascade Path" Button, then your detection source
cam, image or video.