try {
IFile installFile = (IFile) ssel.getFirstElement();
// create the wizard
EditInstallationDescriptorWizard wizard = new EditInstallationDescriptorWizard(installFile
.getProject());
// Initialize the wizard
wizard.init(PlatformUI.getWorkbench(), ssel);
// Create the dialog to wrap the wizard
WizardDialog dialog = new WizardDialog(shell, wizard);
// Open Wizard Dialog