have a look at the class Runtime and in particular at its methods exec
() ; they offer an awful lot of ways to start any external program.

You can use System.exec() to call  the exe..

try
{
Runtime.getRuntime().exec("program.exe");
}
catch (IOException exc)
{
......
}

It is in the process command
Runtime r = Runtime.getRuntime();
Process p = r.run();