Load where? Sharing on LimeWire? No you should never share 'protected' song files on LW !!! Never ! Protected audio files means only the person who purchased them can play them.
Gladly Apple have removed their play & burn & share DRM protection from their online songs now. Unfortunately most other online music shops including Microsoft owned ones still have DRM protection.
In your search results, if you right-click the heading bar & choose show License then it will show in that column whether a song file is protected. I would not touch such files with a 200 metre broomstick. lol
Oops misread your thread title. So looks like you will need to find alternative ones unfortunately.