AdiIRC

Added in 1.8.10

/sockwrite [-tnb] <name> [numbytes] <text|%var|&binvar>

Switches

-t - Forces AdiIRC to send anything beginning with a & as normal text instead of interpreting it as a binary variable.
-n - Appends a $crlf to the line being sent if it is not a &binvar and if it does not already have a $crlf.
-b - Indicates that you are specifying the numbytes value which is the number of bytes you want to send.

Parameters

<name> - Name of the connection to send to.
[numbytes] - Number of bytes to send. (used with -b)
<text|%var|&binvar> - Plain text, %var or &binvar to send.