If she erases, the child can add then back!!!
So what's the point of doing this??? Mon erases, child adds, mon erases, child adds, mon erases, child adds....
How about my idea (up)???
I'm starting to think that the only ways are: "Free" your mind and let it OR do not allow her to use MSN...
You can try the duck!'s idea (to use a web messenger).
And than you can easily block MSN to be runed on the computer...
/ 
