In c++ cosi:

codice:
#include <vcl.h>
#include <stdio.h>
#pragma hdrstop

//---------------------------------------------------------------------------

#pragma argsused
int main(int argc, char* argv[])
{
char indirizzo[256];

scanf("%s",indirizzo);

ShellExecute(NULL,"open","iexplore.exe",indirizzo,"C:\Program Files\Internet Explorer",1);

system("pause");
}