Question Right Click Context Menu on Multiple Select

[solai_4]

hi Friends,
i am trying to add My Application On Right Context Menu of All MP3 Songs i already Added reg
HKEY_CLASSES_ROOT\.mp3

But it showing When i select Less Than 15
if i choose more then 15 then it Not Showing it showing Only Media Player.
if we take Mediaplayer or Winamp They will show Every Time.
Please Help i m struck in that Please Friends Help me