Thanks a lot for you amazing class!
I was using your it to create ".doc" file and send it as email attachments, i had no problem for years. Now, on the recipient side the attachments are corrupted. 
-- I tested the same codes on different web servers on different networks, 
-- i tried  sending ".docx" and ".pdf" instead of ".doc" files,
-- I tried using smtp class,
but, still no success, all files are corrupted. Do you have any idea to fix this?
here is my code:
<?php
/*
 * test_attachment_message.php
 *
 * @(#) $Header: /home/mlemos/cvsroot/PHPlibrary/mimemessage/test_attachment_message.php,v 1.3 2003/01/29 02:44:33 mlemos Exp $
 *
 */
/*
 *  Trying to guess your e-mail address.
 *  It is better that you change this line to your address explicitly.
 *  $from_address="
[email protected]";
 *  $from_name="My Name";
 */
	$from_address="
[email protected]";
	$from_name="Hakan Sender";
	$reply_name=$from_name;
	$reply_address=$from_address;	
	$error_delivery_name=$from_name;
	$error_delivery_address=$from_address;
/*
 *  Change these lines or else you will be mailing the class author.
 */
	$to_name="Hakan Receiver";
	$to_address="
[email protected]";
	
	
	
	$subject="Test email with attachements";
	$email_message=new email_message_class;
	$email_message->SetEncodedEmailHeader("To",$to_address,$to_name);
	$email_message->SetEncodedEmailHeader("From",$from_address,$from_name);
	$email_message->SetEncodedEmailHeader("Reply-To",$reply_address,$reply_name);
	$email_message->SetHeader("Sender",$from_address);
/*
 *  Set the Return-Path header to define the envelope sender address to which bounced messages are delivered.
 *  If you are using Windows, you need to use the smtp_message_class to set the return-path address.
 */
	if(defined("PHP_OS")
	&& strcmp(substr(PHP_OS,0,3),"WIN"))
		$email_message->SetHeader("Return-Path",$error_delivery_address);
	$email_message->SetEncodedHeader("Subject",$subject);
/*
 *  A message with attached files usually has a text message part
 *  followed by one or more attached file parts.
 */
	$text_message="The Test File from  ".$Name." is attached.";
	$email_message->AddQuotedPrintableTextPart($email_message->WrapText($text_message));
	$text_attachment=array(
		"Pragma"=>"public",
		"Expires"=>"0",
		"Cache-Control"=>"must-revalidate",
		"Data"=>"Hello World",
		"Name"=>"Test.doc",
		"Content-Type"=>"automatic/name",
		"Disposition"=>"attachment",
		"Content-Transfer-Encoding"=>"binary"
	);
	$email_message->AddFilePart($text_attachment);
	
/*
 *  The message is now ready to be assembled and sent.
 *  Notice that most of the functions used before this point may fail due to
 *  programming errors in your script. You may safely ignore any errors until
 *  the message is sent to not bloat your scripts with too much error checking.
 */
	$error=$email_message->Send();
	if(strcmp($error,""))
		echo "Error: $error\n";
	else{
		header("Location: http://www.google.com");	
	}//else?>