$comcall
From Scriptwiki
$comcall() uses the same format as $com apart from the alias. It is multi-threaded so it will not halt the script and will call the specified alias once the call returns.
$comcall(name,alias,...)
Note: If $comcall() fails when calling an object and $com does not, this means that the object is not compatible with the threading model of mIRC, so $com must be used. You can check the $comerr value in the alias to determine if a $comcall() failed or not.
See Also
- COM Objects For /comopen /comclose /comlist /comreg $comerr