Alter Context Menus for WMP10

  I'd like to eliminate some of the right-click context menu handles for WMP
10.  The ones I want to eliminate are:
    convert audio format
    add to playlist
    add to sync list
    add to burn list

And for all contet menus, I'd like to eliminate
    create shortcut

I cannot locate these entries in the registry.  Can someone help?

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*rain*drops*