Help with copying files into the the Start Menu

Question

I am trying to copy my application which tracks system usage, such as reboots, temps, etc, I want it when it first runs, to copy it self into the the programs folder and the start up folder. However I get the error ""FileCopy: destination file is unwriteable: ""......Anyone have an idea why I get this error? Is there away around it? Thanks for any and all help
*Copying on a Mac works fine
*I am currently Testing it on a copy of Windows Xp
*I havenot Tested Vista or 7 Yet.
Hers the class which I call to copy my program
class FileCopy {
     String OS="";
     String username;
     String dir;
     String name="Test.jar";
     String MAC="Mac OS X";
     String WinXp="Windows XP";
     String WinVista="Windows Vista";
     String Win7="Windows 7";
     JFrame errorWin;
     FileCopy(){
          System.out.println("Enter Copy");
          OS= ManagementFactory.getOperatingSystemMXBean().getName();
          username = System.getProperty("user.name"); 
          if(MAC.compareTo(OS)==0){
               copyMac();
          else if(WinXp.compareTo(OS)==0){
               copyWinXp();
          else if(WinVista.compareTo(OS)==0){
               copyWinVista();
          else if(Win7.compareTo(OS)==0){
               copyWin7();
          else
               return;
     private void copyMac(){          
          System.out.println("Enter Mac Copy");
          System.out.println("OS:"+OS);
          String s="/Applications/Solitaire.Jar";
          try {
               copy(name, s);
          } catch (IOException e) {
               System.out.println("Failed at Mac Copy new");
               errorWin=new JFrame("Error: Failed at Mac Copy new ");
               e.printStackTrace();
          } //Moves Jar File to Application Folder
     private void copyWin7(){
          String dir1="C:\\Documents and Settings\\All Users\\Start Menu\\Programs\\SolitaireWin7.Jar";
          String dir2="C:\\Documents and Settings\\All Users\\Start Menu\\Programs\\Startup\\SolitaireWin7.Jar";
          try {
               copy(name, dir1);
          } catch (IOException e) {
               System.out.println("Failed at Win7 Copy 1");
               errorWin=new JFrame("Failed at Win7 Copy 1");
               e.printStackTrace();
          } //Moves Jar File to Application Folder
          try {
               copy(name, dir2);
          } catch (IOException e) {
               System.out.println("Failed at Win7 Copy 2");
               errorWin=new JFrame("Failed at Win7 Copy 2");
               e.printStackTrace();
          } //Moves Jar File to Application Folder     
     private void copyWinVista(){
          String dir1="C:\\Documents and Settings\\All Users\\Start Menu\\Programs\\SolitaireVista.Jar";
          String dir2="C:\\Documents and Settings\\All Users\\Start Menu\\Programs\\Startup\\SolitaireVista.Jar";
          try {
               copy(name, dir1);
          } catch (IOException e) {
               errorWin=new JFrame("Failed at Winista Copy 1");
               System.out.println("Failed at WinVista Copy 1");
               e.printStackTrace();
          } //Moves Jar File to Application Folder
          try {
               copy(name, dir2);
          } catch (IOException e) {
               errorWin=new JFrame("Failed at WinVista Copy 2");
               System.out.println("Failed at WinVista Copy 2");
               e.printStackTrace();
          } //Moves Jar File to Application Folder     
     private void copyWinXp(){
          String dir1="C:\\Documents and Settings\\"+username+"\\Start Menu\\Programs\\Solitaire.Jar";
          String dir2="C:\\Documents and Settings\\"+username+"\\Start Menu\\Programs\\Startup\\Solitaire.Jar";
          try {
               copy(name, dir1);
          } catch (IOException e) {
               errorWin=new JFrame("Failed at WinXp Copy 1");
               errorWin.setVisible(true);
               errorWin.repaint();
               System.out.println("Failed at WinXP Copy 1");
               e.printStackTrace();
          } //Moves Jar File to Application Folder
          try {
               copy(name, dir2);
          } catch (IOException e) {
               errorWin=new JFrame("Failed at WinXp Copy 2");
               errorWin.setVisible(true);
               errorWin.repaint();
               System.out.println("Failed at WinXP Copy 2");
               e.printStackTrace();
          } //Moves Jar File to Application Folder     
     public void copy(String fromFileName, String toFileName) throws IOException {
       File fromFile = new File(fromFileName);
       File toFile = new File(toFileName);
       if (!fromFile.exists()){
            errorWin=new JFrame("FileCopy: " + "no such source file: "  + fromFileName);
               errorWin.setVisible(true);
               errorWin.repaint();
         throw new IOException("FileCopy: " + "no such source file: "  + fromFileName);
       if (!fromFile.isFile()){
            errorWin=new JFrame("FileCopy: " + "can't copy directory: "
                       + fromFileName);
               errorWin.setVisible(true);
               errorWin.repaint();
         throw new IOException("FileCopy: " + "can't copy directory: "
             + fromFileName);
       if (!fromFile.canRead()){
            errorWin=new JFrame("FileCopy: " + "source file is unreadable: "
                       + fromFileName);
               errorWin.setVisible(true);
               errorWin.repaint();
         throw new IOException("FileCopy: " + "source file is unreadable: "
             + fromFileName);
       if (toFile.isDirectory())
         toFile = new File(toFile, fromFile.getName());
       if (toFile.exists()) {
         if (!toFile.canWrite()){
              errorWin=new JFrame("FileCopy: destination file is unwriteable: " + toFileName);
               errorWin.setVisible(true);
               errorWin.repaint();
           throw new IOException("FileCopy: destination file is unwriteable: " + toFileName);
         System.out.print("Overwrite existing file " + toFile.getName()
             + "? (Y/N): ");
         System.out.flush();
         BufferedReader in = new BufferedReader(new InputStreamReader(
             System.in));
         String response = in.readLine();
         if (!response.equals("Y") && !response.equals("y")){
              errorWin=new JFrame("FileCopy: existing file was not overwritten.");
               errorWin.setVisible(true);
               errorWin.repaint();
              throw new IOException("FileCopy: existing file was not overwritten.");
       } else {
         String parent = toFile.getParent();
         if (parent == null)
           parent = System.getProperty("user.dir");
         File dir = new File(parent);
         if (!dir.exists()){
              errorWin=new JFrame("FileCopy: destination directory doesn't exist: " + parent);
               errorWin.setVisible(true);
               errorWin.repaint();
           throw new IOException("FileCopy: destination directory doesn't exist: " + parent);
         if (dir.isFile()){
              errorWin=new JFrame("FileCopy: destination is not a directory: " + parent);
               errorWin.setVisible(true);
               errorWin.repaint();
           throw new IOException("FileCopy: destination is not a directory: " + parent);
         if (!dir.canWrite()){
              errorWin=new JFrame("FileCopy: destination directory is unwriteable: " + parent);
               errorWin.setVisible(true);
               errorWin.repaint();
           throw new IOException("FileCopy: destination directory is unwriteable: " + parent);
       FileInputStream from = null;
       FileOutputStream to = null;
       try {
         from = new FileInputStream(fromFile);
         to = new FileOutputStream(toFile);
         byte[] buffer = new byte[4096];
         int bytesRead;
         while ((bytesRead = from.read(buffer)) != -1)
           to.write(buffer, 0, bytesRead); // write
       } finally {
         if (from != null)
           try {
             from.close();
           } catch (IOException e) {
         if (to != null)
           try {
             to.close();
           } catch (IOException e) {
}

Answer 1

That's clearly a security restriction then. You need to assign the JVM's user account enough rights to do so, or to configure any firewall/virusscanner which has possibly blocked it.
Apart from this, are you aware of the fact that the OS root disk is not per se labeled "C:", that the location of documents is not per se "Documents and Settings", that there exist System#getenv() and System#getProperty() methods to find default system and environment variables and that there is the java.util.prefs API to access the registry? Your application is likely not going to run on any environment.