I see what Alexander means about mutistream not working.
I normally only play multimedia one at a time
If I play an mp3, or a movie via mplayer, then try to play something via pm123 I get "MCI Error 5613: Insufficient buffer size specified."
If I stop mplayer then pm123 works fine.
If I start playing music via pm123, then start something in mplayer, mplayer doesnt complain it just doesnt make any sound.
Tried it with uniaud32-20210128-Alexander.zip and there is no difference.
Log attached.
PS, I'm using uniaud16.sys (dated 25th Jun 2017, revision 1.09.7) which I assumed is the latest 16 driver.
PPS, thought I would try system sounds again. They work fine until I use pm123 or another mm application, then they nolonger work - ever. If I warm boot then test the system sounds (works), then start pm123, click on the system sounds Test button, I get no system sound. If I click a second time on the Test button, the audio from pm123 stops. To get audio back for pm123 I need to restart pm123. <== with uniaud32-20210128-Alexander.zip