Added in 1.9.2
$dllcall(filename, alias, procname, data)
Returns the value resulting from a call to a DLL file designed to work with AdiIRC.
$dllcall is multi-threaded so it will not halt the script and will call the specified alias once the DLL responds.
Only 64 bit DLL's can be loaded on 64 bit version of AdiIRC, on 32 bit version 32 bit DLL's and even some mIRC DLL's can be loaded.