====== Programs ======

Every program in a ProBoard v4 installation, what it does and how it starts. The architecture picture is on the [[v4:introduction|Introduction]] page.

===== Core =====

^ Program ^ Kind ^ What it is ^
| ''ProBoard.exe'' | Console window, one for each caller | The BBS engine. One copy runs for each caller (a **node**): logon and new-user signup, menus (including "/" commands), message bases (Hudson, JAM, Squish), file areas, transfers, doors. |
| ''PBDispatch.exe'' | Windows program that stays running | The front door and supervisor. It listens for callers on Telnet (23), RLogin (513) and its native SSH server (22), starts a ProBoard node for each caller, starts and watches the other programs, and shows what is going on. |
| ''PBConfig.exe'' | Windows program | One window for every setting. Replaces the old PROCFG. |

===== Mail and files =====

^ Program ^ Kind ^ What it is ^
| ''PBMailer.exe'' | Short-lived | FidoNet mailer: BinkP and EMSI sessions, answering or calling, file exchange with Zmodem. |
| ''PBToss.exe'' | Batch job | The tosser and scanner. Moves arrived mail into message bases and packs new mail for your links. |
| ''PBTic.exe'' | Batch job | File-echo processor. A file that arrives with a ''.TIC'' goes into the right file area. |
| ''PBqwk.exe'' | Batch job | QWK network client. ''-poll'' fetches packets from a hub, ''-pack'' builds and sends your outgoing mail. |
| ''PBQwkHub.exe'' | Stays running | The PBLink hub. It has its own FTP server for member boards. |

===== Servers =====

^ Program ^ Kind ^ What it is ^
| ''PBWeb.exe'' | Short-lived | The web portal. |
| ''PBFtelnet.exe'' | Short-lived | The bridge that lets the browser terminal reach the board through a WebSocket. |
| ''PBFtp.exe'' | Short-lived | FTPS download server for the file areas. |
| ''PBNntp.exe'' | Short-lived | News server so a newsreader or PBMessages can read and post. |
| ''PBSshBridge.exe'' | Stays running | The **old** SSH bridge that relied on Windows OpenSSH. Replaced by the native SSH server in PBDispatch. |

===== Caller tools =====

^ Program ^ What it is ^
| ''PBTerm.exe'' | Terminal program for calling any BBS: Telnet, RLogin and SSH, ANSI, RIP and retro terminals, file transfers, a phonebook. |
| ''PBMessages.exe'' | A desktop message reader. It reads local JAM bases directly and talks to PBNntp over NNTP with TLS. |

===== Doors =====

^ Program ^ What it is ^
| ''PBLegacy.exe'' | Runs 16-bit DOS door games through DOSBox-X. |

===== Maintenance =====

^ Program ^ What it is ^
| ''PBUtil.exe'' | The maintenance toolbox ported from the original PBUTIL: 15 modes including user packer, user sort, user killer, user fix, user index and message base packer. |
| ''PBAvatar.exe'' | A command-line tool to manage message avatars: list, show, set, import, export, remove and hide. |

===== Setup =====

^ Program ^ What it is ^
| ''PBInstall.exe'' | The installer and updater. |
| ''PBMigrate.exe'' | Imports FastEcho and Internet Rex settings. |
| ''PBMigHelper.exe'' | A 32-bit collector that runs on the **old** system and packs its settings into one zip. Installed in the ''Tools'' folder. |
| ''PBRelease.exe'' | The publisher's tool for update packages and BBS lists. Never shipped to sysops. |

===== Run-time libraries =====

Some files must stay next to the programs:

^ File ^ Needed by ^
| ''ssh.dll'' | PBDispatch (SSH server) and PBTerm (SSH client). They will not start without it. |
| ''libcrypto-3-x64.dll'' (or ''libcrypto-3.dll'' on 32-bit) | ''ssh.dll'', PBFtp and PBNntp. |
| ''libssl-3-x64.dll'' (or ''libssl-3.dll'') | PBFtp and PBNntp, for encrypted FTP and news. |

PBTerm and PBDispatch share these files in the same folder, so keep them from the same build.