Sometimes user downloads are interrupted, or otherwise corrupt. This small mod will display the MD5 checksum of a local file in the description area.
File {forum}/admin/applications_addon/ips/downloads/modules_public/display/file.php
Find Line 197:
$file['file_desc'] = IPSText::getTextClass( 'bbcode' )->preDisplayParse( $file['file_desc'] );
if( $file['file_storagetype'] == 'nonweb' )
{
$dlname = $this->ipsclass->vars[ 'idm_localfilepath' ] . "/" . $file['file_filename'];
$file['file_desc'] .= "MD5 Hash: ";
$file['file_desc'] .= md5_file( $dlname );
}