AdiIRC

You might be able to use $rawbytes in on PARSELINE, haven't tested it though so not sure.

-u will be added at some point, requires some bigger rewrites.

$bvar().text does UTF8 decode, same as mirc.

For getting non UTF8 decoded text out of $bvar(), I suggest asking maroon or talon on #adiirc, they might have an idea.

Unfortunately in my testing $rawbytes was $null in the on PARSELINE event.

You're right about mIRC, sorry.

The best I could come up with...
alias -l bvar2text { var %i 1, %r "" | while (%i <= $bvar($1, 0)) { %r = $qt($+($mid(%r, 2, $calc($len(%r) - 2)), $chr($bvar($1, %i)))) | inc %i } | returnex $mid(%r, 2, $calc($len(%r) - 2)) }
...half of the effort was preserving spaces.

Not sure if it helps in this case, but adiirc has as /!& prefix to evaluate only the last %variable to keep spaces in that variable.

I'll see if I can come up with something that prevents encoding UTF8 for on PARSELINE, maybe a temporary variable for now.

Example of /!& https://dev.adiirc.com/projects/adiirc/wiki/Scripting_Commands#Command-prefixes

Per Amundsen wrote in #note-3:

Not sure if it helps in this case, but adiirc has as /!& prefix to evaluate only the last %variable to keep spaces in that variable.

I managed to preserve spaces with the above alias, but that's just a side effect of having to proxy via /socklisten and /sockopen

I'll see if I can come up with something that prevents encoding UTF8 for on PARSELINE, maybe a temporary variable for now.

This would be enough for me to connect directly to the server directly with AdiIRC, even if the raw data was stored in an &binvar.