I've found this link about sound: http://www.materiama...mushclient.html
But it seems this information is a bit outdated. There is no "mm_msp.xml" plugin anymore.
After some exploring I found msp_lua plugin, which is enabled by default.
"msp display" show correct path: C:/Program Files (x86)/MUSHclient/sounds/msp/
I've tried "msp reset path" also.
But no sounds still.
I've got sounds when download all six sound pack files from http://www.materiama...mushclient.html
Then I unzip all files to C:/Program Files (x86)/MUSHclient/sounds/msp/
And change sound type to wav with command: msp type wav
Now I can hear sound when Knock door
It seems I have some problem with MP3 sound files.