function upgradeCleanup()
{
  // Obsolete files and generated files that
  // need to be cleaned up.
  deleteThisFile("Program",    "component.reg");
  deleteThisFile("Components", "compreg.dat");
  deleteThisFile("Components", "xpti.dat");
  deleteThisFile("Components", "xptitemp.dat");

  deleteThisFile("Program", "mozrmi36.dll");

  // extra files shipped in enhanced builds distributed by Peter Weilbacher
  deleteThisFile("Program", "RWSCLI07.DLL");
  deleteThisFile("Program", "RWSSRV07.DLL");
  deleteThisFile("Program", "RWSUTIL07.CMD");
  deleteThisFile("Program", "RWSUTIL.CMD");
  deleteThisFile("Program", "RWS08.CMD");
  deleteThisFile("Components", "rwsos2.dll");
  deleteThisFile("Components", "rwsos2.xpt");
}

// main
var srDest;
var err;
var fProgram;

srDest = $SpaceRequired$:bin;
err    = initInstall("XPCOM", "XPCOM", "$Version$"); 
logComment("initInstall: " + err);

fProgram  = getFolder("Program");
logComment("fProgram: " + fProgram);

// Log component.reg file so it can be deleted by the uninstaller.
// These two files are created after installation is done, thus
// are normally not logged for uninstall.
logComment("Installing: " + fProgram + "component.reg");

if(verifyDiskSpace(fProgram, srDest))
{
  setPackageFolder(fProgram);

  upgradeCleanup();
  err = addDirectory("",
                     "$Version$",
                     "bin",              // dir name in jar to extract 
                     fProgram,           // Where to put this file (Returned from GetFolder) 
                     "",                 // subdir name to create relative to fProgram
                     true);              // Force Flag 
  logComment("addDirectory() of Program returned: " + err);

  if( err == SUCCESS )
  {
    err = performInstall(); 
    logComment("performInstall() returned: " + err);
  }
  else
    cancelInstall(err);
}
else
  cancelInstall(INSUFFICIENT_DISK_SPACE);


// end main