Like most of you have recentley installed 11.3 (4am UK time june 15th) and yeah everything isnt working sound wise cant watch movies or listen to music now i dont have realplayer and using 32 bit vista before this so called update there was zero problems and now no sound so it is clearly adobes fault WHEN will you fix it !!!
We will work with RealPlayer to resolve this. You mentioned that you no longer have RealPlayer, if you uninstalled you can reinstall and just disable one of the features.
This FAQ has the details in the first solution:
Europe, Middle East and Africa