Warning: Unexpected character in input: '\' (ASCII=92) state=1

I'm using this code to create a 301 redirect from old smf forum to new vbulletin forum. But I'm getting these two errors when i visit an old url:

Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /my/absolute/path/vbseo301.php on line 2

Parse error: syntax error, unexpected T_STRING in /my/absolute/path/vbseo301.php on line 2

I can't understand the problem?

 

Replace following line 2 code:

* 404 /301 for external and internal link redirect.

Code (markup):

with

/* 404 /301 for external and internal link redirect.

Code (markup):

Kailash

 

It still gives the same errors after trying the above. I don't understand. I can even take out this part:

 * 404 /301 for external and internal link redirect.
*
* @package            ImpEx.tools
* @version            $Revision: 1902 $
* @author            Jerry Hutchings 
* @modified by             Oleg Ignatiuk 
*/

Code (markup):

And it will still say the errors are on line two.