Many Drupal programmers, Drupal site admins and Drupal site users have encountered errors similar to "Warning: Cannot modify header information - headers already sent by (output started at ...\domainname.com\includes\install.inc:236) in ...\domainname.com\includes\install.inc on line 618" in their Drupal site. If you are facing the same situation in your Drupal site then read on to find out the solution.
