[J7N]

Better use this to make BSPlayer appear in the rightclick menu. Not in a submenu. Less clicking required. Change the strings where required to match your system.

REGEDIT4 

[HKEY_CLASSES_ROOT\.wmv] 
@="ZZ_ASF_video" 

[HKEY_CLASSES_ROOT\ZZ_ASF_video] 
@="Advanced Streaming Format video" 

[HKEY_CLASSES_ROOT\ZZ_ASF_video\DefaultIcon] 
;; --- change this 
@="D:\\Apps\\Bsplayer\\Bsplayer.exe,0" 

[HKEY_CLASSES_ROOT\ZZ_ASF_video\shell] 
@="bsplayer" 

[HKEY_CLASSES_ROOT\ZZ_ASF_video\shell\bsplayer] 
@="• BSplayer" 

[HKEY_CLASSES_ROOT\ZZ_ASF_video\shell\bsplayer\command] 
;; --- change this 
@="D:\\Apps\\Bsplayer\\Bsplayer.exe \"%L\""

[HKEY_CLASSES_ROOT\ZZ_ASF_video\shell\mplayer2] 
@="• Windows Media" 

[HKEY_CLASSES_ROOT\ZZ_ASF_video\shell\mplayer2\command] 
@="mplayer2.exe \"%L\""

[HKEY_CLASSES_ROOT\ZZ_ASF_video\shell\bloatedwmp] 
@="• Windows Media GUI" 

[HKEY_CLASSES_ROOT\ZZ_ASF_video\shell\bloatedwmp\command] 
@="wmplayer.exe \"%L\""