Help with trim removal... '93 Cherokee??

I know this isn't an A-body question but I haven't had much luck on the Jeep forum I belong to... I'm removing the side molding on my '93 Cherokee and this rubber-like adhesive underneath is impossible to get off.



It's not the stuff on the top and bottom (my 3M stripe remover works great on that), it's the black spots in the middle. I've tried Goof-Off and WD-40, nothing. I tried going at it with a razor blade and ended up taking some bits of the paint off with it :banghead: What the heck is this stuff and how do I get it off???