Quick reference to mIRC's commands:

If you need more info on any command listed here, type /help {command} in mIRC. The list here is far from complete!

/ Recalls the previous line entered in the current window. 
/! Recalls the last command typed in any window. 
/action {action text} Sends the specifed action to the active channel or query window. 
/add [-apuce] {filename.ini} Loads aliases, popups, users, commands, and events. 
/ame {action text} Sends the specifed action to all channels which you are currently on. 
/amsg {text} Sends the specifed message to all channels which you are currently on. 
/auser {level} {nick|address} Adds a user with the specified access level to the remote users list. 
/auto [on|off|nickname|address] Toggles auto-opping of a nick or address or sets it on or off totally. 
/away {away message} Sets you away leave a message explaining that you are not currently paying attention to IRC. 
/away Sets you being back. 
/ban [#channel] {nickname} [type] Bans the specified nick from the curent or given channel. 
/beep {number} {delay} Locally beeps 'number' times with 'delay' inbetween the beeps. 
/channel Pops up the channel central window (only works in a channel). 
/clear Clears the entire scrollback buffer of the current window. 
/clearall Clears all text in all open windows. 
/ctcp {nickname} {ping|finger|version|time|userinfo|clientinfo} Does the given ctcp request on nickname. 
/closemsg {nickname} Closes the query window you have open to the specified nick. 
/commands [on|off] Sets the Tools/Remote/Commands setion on or off or checks its status. 
/creq [ask | auto | ignore] Sets your DCC 'On Chat request' settings in DCC/Options. 
/dcc send {nickname} {file1} {file2} {file3} ... {fileN} Sends the specified files to nick. 
/dcc chat {nickname} Opens a dcc window and sends a dcc chat request to nickname. 
/dde [-r] {service} {topic} {item} [data] Allows DDE control between mIRC and other applications. 
/ddeserver [[on [service name] | off] To turn on the DDE server mode, eventually with a givem service name. 
/describe {#channel} {action text} Sends the specifed action to the specified channel window. 
/disable {#groupname} De-activates a group of commands or events. 
/disconnect Forces a hard and immediate disconnect from your IRC server. Use it with care. 
/dlevel {level} Changes the default user level in the remote section. 
/dns {nickname | IP address | IP name} Uses your providers DNS to resolve an IP address. 
/echo [nickname|#channel|status] {text} Displays the given text only to YOU on the given place in color N. 
/enable {#groupname} Activates a group of commands or events. 
/events [on|off] Shows the remote events status or sets it to listening or not. 
/exit Forces mIRC to closedown and exit. 
/finger Does a finger on a users address. 
/flood [{numberoflines} {seconds} {pausetime}] Sets a crude flood control method. 
/flush [levels] Clears all nicknames from the Remote/users list that are currently not on your channels. 
/font Activates the font selection dialog. 
/fsend [on|off] Shows fsends status and allows you to turn dcc fast send on or off. 
/fserve {nickname} {maxgets} {homedirectory} [welcome text file] Opens a fileserver. 
/groups [-e|d] Shows all (enabled or disabled) groups defined in the remote sections. 
/guser {level} {nick} [type] Adds the user to the user list with the specified level and address type. 
/help {keyword} Brings up the Basic IRC Commands section in the mIRC help file. 
/ignore [on|off|nickname|address] Toggles ignoring of a nick or address or sets it on or off totally. 
/invite {nickname} {#channel} Invites another user to a channel. 
/join {#channel} Makes you join the specified channel. 
/kick {#channel} {nickname} Kicks nickname off a given channel. 
/list [#string] [-min #] [-max #] Lists all currently available channels, evt. filtering for parameters. 
/load {-apuce} {filename.ini} Loads Aliases, Popups or Remote items into mIRC. 
/log [on|off] Shows the logging status or sets it on or off for the current window. 
/me {action text} Sends the specifed action to the active channel or query window. 
/mode {#channel|nickname} [[+|-]modechars [parameters]] Sets channel or user modes. 
/msg {nickname} {message} Send a private message to this user without opening a query window. 
/names {#channel} Shows the nicks of all people on the given channel. 
/nick {new nickname} Changes your nickname to whatever you like. 
/notice {nick} {message} Send the specified notice message to the nick. 
/notify [on|off|nickname] Toggles notifying you of a nick on IRC or sets it on or off totally. 
/onotice [#channel] {message} Send the specified notice message to all channel ops. 
/omsg [#channel] {message} Send the specified message to all ops on a channel. 
/part {#channel} Makes you leave the specified channel. 
/partall Makes you leave all channels you are on. 
/ping {server address} Pings the given server. NOT a nickname. 
/play [-cpqmrlt] [channel/nick] {filename} [delay/linenumber] Allows you to play text files. 
/pop {delay} [#channel] {nickname} Performs a randomly delayed +o on a not already opped nick. 
/protect [on|off|nickname|address] Toggles protection of a nick or address or sets it on or off totally. 
/query {nickname} {message} Open a query window to this user and send them the private message. 
/quit [reason] Disconnect you from IRC with the optional byebye message. 
/raw {raw command} Sends any raw command you supply directly to the server. Use it with care ! 
/remote [on|off] Shows the remote commands status or sets it to listening or not. 
/rlevel {access level} Removes all users from the remote users list with the specified access level. 
/run {c:\path\program.exe} [parameters] Runs the specified program, evt. with parameters. 
/ruser {nick[!]|address} [type] Removes the user from the remote users list. 
/save [-apuce] {filename.ini} Saves remote sections into a specified INI file. 
/say {text} Says whatever you want to the active window. 
/server [server address [port] [password]] Reconnects to the previous server or a newly specified one. 
/sound [nickname|#channel] {filename.wav} {action text} Sends an action and a fitting sound request. 
/speak {text} Uses the external text to speech program Monologue to speak up the text. 
/sreq [ask | auto | ignore] Sets your DCC 'On Send request' settings in DCC/Options. 
/time Tells you the time on the server you use. 
/timer[N] {repetitions} {interval in seconds} {command} [| {more commands}] Activates a timer. 
/timestamp [on | off] Sets timestamping on or off for all your conversations. 
/topic {#channel} {newtopic} Changes the topic for the specified channel. 
/ulist {level} Lists all users in the remote list with the specified access levels. 
/url [-d] Opens the URL windows that allows you to surf the www parallel to IRC. 
/uwho [nick] Pops up the user central with information about the specified user. 
/wavplay {c:\path\sound.wav} Locally plays the specified wave file. 
/who {#channel} Shows the nicks of all people on the given channel. 
/who {*address.string*} Shows all people on IRC with a matching address. 
/whois {nickname} Shows information about someone in the status window. 
/whowas {nickname} Shows information about someone who -just- left IRC. 
/write [-cidl] {filename} [text] To write the specified text to a .txt file.