video files not opening--in opencv with c++

[aseempandey]

Hello !!
i am a newbie to opencv and working with it in windows. i have opencv 1.0. installed . Any code for video doesn't work in my computer.It is possibly not reading the video file. Here's a sample code

#include "highgui.h"
#include<stdio.h>
int main( int argc, char** argv ) {
    cvNamedWindow( "Example2", CV_WINDOW_AUTOSIZE );
    CvCapture* capture = cvCreateFileCapture( argv[1] );
    IplImage* frame;
    while(1) {
             frame = cvQueryFrame( capture );
             if( !frame ) 
                 break;
             cvShowImage( "Example2", frame );
             char c = cvWaitKey(33);
             if( c == 27 )
              break;
    }
    cvReleaseCapture( &capture );
    cvDestroyWindow( "Example2" );
}

do we have to seperately install some other program like ffmpeg ??
please help..thank u !!