WSO2 Carbon based products such as WSO2 WSAS, WSO2 Registry, WSO2 Identity Server and WSO2 BPS etc. are to integrate with external user information systems such as active directories, LDAP server and several other types of databases. Using these external user information systems, you can control such things as application login, service invoking permissions, service management permissions etc. In this short tutorial, i will explain how to integrate an active directory into a WSO2 Carbon based product.