[TippeX]

well, the cant delete thing is probably cos they're in use.. they're shell extensions after all
as for that link being a solution, it doesn't magically remove securom from a game, it'll just cleanup the system.. using a crack is all fair and good, only if the crack is good though, because as/when a new sims thing comes out or an update etc.. you're right back to square one, so it might be an idea to actually try and solve what the security module error box is, maybe contact securom support and see whats going on.. you say you're a legit user and have bought all the games, so you've not really got anything to worry about contacting them have you