broken file association - why?

MIME DB - cd3afa 
mime ext .wmv

NERO has local handlers

[HKEY_CLASSES_ROOT\.aif]
[HKEY_CLASSES_ROOT\.aiff]
[HKEY_CLASSES_ROOT\.asf]
[HKEY_CLASSES_ROOT\.avi]
[HKEY_CLASSES_ROOT\.cda]
[HKEY_CLASSES_ROOT\.dvr-ms]
[HKEY_CLASSES_ROOT\.m1v]
[HKEY_CLASSES_ROOT\.M2V]
[HKEY_CLASSES_ROOT\.m3u]
[HKEY_CLASSES_ROOT\.mid]
[HKEY_CLASSES_ROOT\.midi]
[HKEY_CLASSES_ROOT\.MOD]
[HKEY_CLASSES_ROOT\.mp2]
[HKEY_CLASSES_ROOT\.mp3]
[HKEY_CLASSES_ROOT\.mpa]
[HKEY_CLASSES_ROOT\.mpe]
[HKEY_CLASSES_ROOT\.mpeg]
[HKEY_CLASSES_ROOT\.mpg]
[HKEY_CLASSES_ROOT\.rmi]
[HKEY_CLASSES_ROOT\.WAV]
[HKEY_CLASSES_ROOT\.wma]
[HKEY_CLASSES_ROOT\.wmv]