Exchange 2007 OWA chooses the display language automatically according to the language setting of the browser. E.g. if I set my IE's primary language as Chinese, OWA logon page will display Chinese. My customer wants to disable this feature, i.e. alway display English interface no regardless of the IE setting. Is it possible? How to? Thanks for help!

If existing language pack in Exchange is chinese, then your customer cant help. If it's about just the language problem of Windows OS, then he/she can change it manually. Regards, Amey Abhyankar.

OWA language (and time zone) is selected the first time use is logging on to OWA 2007 with FBA enabled, this is default . you can change this and set it to a specific language, with 'set-owavirtualdirectory "OWA (default web site)" -DefaultClientLanguage ... -LogonAndErrorLanguage ...'