Performance Counters do not work with Non English Language Operating System Installations When MailSite is installed on a server on a non English language version of Windows, the performance counters are shown as numbers and are not usable. The reason for the counters not working is the regional settings are set to a language other than English. This causes the counters to be displayed in their numerical form, making them impossible to be used to measure the performance of the services. To enable the Counters to work correctly, perform these steps. 1. Login as the Local Administrator. 2. Change the Regional Settings to English, Apply Now the counters will be visible in the Performance monitor for use.