I suspect that most of the solder is directly under the capacitor: the rest has been mostly corroded away. I do see some solder on the outside, but I can't tell if it liquefies when I apply the iron. I don't think it is liquefying when I do apply the iron. This is less a problem with HighK solder (which I don't believe it is) and more a problem with an old corroded away solder joint, which I don't have experience reworking, yet. This is the oldest and most corroded circuit board I've attempted rework on.