Trying to apply patch https://drupal.org/files/webform_preview-435232_1.patch to webform 7.x-3.19 via Netbeans tool - apply dif-patch. Downloaded this patch and put into drupal root directory. When applying patch to module files see the following: "The patch cannot be applied in the selected context". Module files are in Netbeans project and all paths are properly set. The code to which patch changes are applied exists in the target file, so what else problems can be?