Error parsing browscap.ini

[technobia]

Windows 2003 Server / IIS 6.0 / PHP 5.0.5

When trying to load phpMyAdmin or ZenCart index.php I get the following error message logged into the server console:
=================================================
PHP Error:
Error parsing C:\PHP\browscap.ini on line 10640
[OK]
=================================================
Then the line 10640 was remarked out but the same line contiues to be reported in the error message.

If you say OK to the console error, both ZenCart and phpMyAdmin pages load as they should.

COMFIGURATION:
PHP.ini:
[browscap]
browscap=C:\PHP\extras\browscap.ini

PERMISSIONS:
C:\PHP\extras\browscap.ini
Internet Guest Account IUSR_SERVERNAME = Modify, Read & Execute, Read, Write (even tried Full Control no luck)

What might be causing the parsing error and how do I fix it?

Thanks - Jody