| Task Exe. | Task Name | Task Description |
| nservice |  | Included as most of us run Domino as a service in Windows. |
| nserver | Database Server | Provides core database services - will be multiple threads handling process and user/server connections. |
| nrouter | Router | Mail router for sending NRPC mail. |
| nprocmon | Process Monitor | Monitors server tasks for failure, initiates Domino fault and restart when occurs. |
| namgr | Agent Manager | Runs scheduled agents - usually multiple instances. Number of namgr tasks depends on day vs night settings in server document. |
| nadminp | Administrative Process | Performs many of the tedious and multi-step maintenance tasks in a Domino Domain (environment). |
| nhttp | HTTP Server | Runs the Domino web server. Run on all servers hosting web mail or web applications. |
| nldap | LDAP Server | Runs the Domino LDAP server on administrative server for Lotus Domain. Not usually run on other Domino servers. |
| nsmtp | SMTP Server (Listener) | Used for Domino servers receiving SMTP mail from Internet. Otherwise, not needed. |
| nreplica | Replicator | Replicates / syncs changes within same applications between Domino servers. Needed if you have more than one Domino server. |
| nevent | Event Monitor | Monitors system for events to handle. |
| nupdate | Indexer | Provides view index updates on server. |
| nca | CA Process | Certificate authority which handles server-based certificate requests, renewals, and renames. |
| ndircat | Directory Cataloger | Updates directory information from Domino Directories into the Directory Catalog (dircat.nsf) database. |
| ndiiop | DIIOP | Java IIOP server for Domino that handles local or remote CORBA calls. Most of us don't run this anymore. |
| nimap | IMAP | Provides mail IMAP server for Domino that handles mail clients that use the IMAP format. (Superior to POP3. Use this if politics allow.) |
| npop | POP3 | Provides mail POP3 server for Domino that handles mail clients that use the POP version 3 format. (Use IMAP instead if politics allow as it supports server-based folders, mail stays on server for easier backup.) |