DOS Commands Used in Java Pgm, but command window should NOT be visible!

Question

Need a solution for the following.
Problem: In a Java program, DOS Commands are used.
Hence while executing it, the command window is visible for few seconds and later it is hided i.e once the processing of that DOS Command is finished.
Solution Required: The Command Window should not be visible. The DOS Commands should be performed in the background with out making the command window visible.

Answer 1

Problem:
I am trying to run a executable file through java . But a command window always pops up. I want the command window not to pop up while the code is executed. Alternatively the rt.exec method should run in the background till the process is complete.
I am using the following code in Java Swing application , where in when a user clicks a button the following method is invoked , which is turns invokes a windows a rasdial.exe file .Ex: rasdial MyConnection;
Can someone help me on this. The below is a snippet of my code .
public void callSerialOrInfraExe(String exeName) {
executableFile = exeName;
Runtime rt = null;
Process process = null;
boolean checkCon = false;
try {
rt = Runtime.getRuntime();
     process = rt.exec("rasdial " + executableFile);
process.waitFor();
checkCon = checkConEstablish();
if (checkCon) {
lblMsg.setVisible(true);
cmdSubmit.setText("Done");
cmdSubmit.setMnemonic('D');
rdbSerialPort.setVisible(false);
rdbInfraredPort.setVisible(false);
jLabel1.setText(msgStr.toString());