here goes I haven't seen a 95 box in a while and this is from the days we were using IE 3 or 4 over here, what I have here says to delete the entire reg key titled \\HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\Windows\CurrentVersion\Policies\Ratings\Key
and then delete ratings.pol from your windows/system directory. (you may have to shut down windows and boot to a prompt to delete that .pol file)
If you are using higher than IE4 and this is no longer the current way to do this (I don't know, I think it should still work, but I don't have a 95 box to test), I would not imagine this would hurt anything, but you might to be on the safe side, back up that ratings.pol file and that entire reg key and all it's subkeys and values to a file before deleting them.
let me know if it works.