h1. Taking advantage of ApacheDS This chapter contains two concrete examples on how to use Apache Directory Server with other software programs. The E-Mail client Mozilla Thunderbird will use ApacheDS as source for an address book. The web application server Apache Tomcat will use ApacheDS as authentication and authorization database. You may use these examples as a blueprint for other programs (clients, servers), which act as an LDAP client against ApacheDS. Embedding ApacheDS, although really interesting, is not covered in the Basic User's Guide. Check the Advanced User's Guide in order to learn about this feature.