Westlaw requires EZproxy 4.0g (2007-03-12) (or later) combined with the following database definition for config.txt:
URL http://www.westlaw.com/ (the-rest-of-your-westlaw-url)
Please note that many functions of Westlaw will only function properly if you disable any pop-up blocker. For example, printing may not work if a pop-up blocker is active.
When using versions of EZproxy prior to 4.0g, an error message that starts Sys.WebForms.PageRequestManagerParserErrorException can appear. If this occurs, the only way to resolve the problem is to upgrade to a current release of EZproxy.