It's likely that the installation of one of the Windows components used to display the help has been damaged.
(I'm running Win7 SP1 without problems, so I don't think it is that.)
Try the suggestions in this thread:
It's likely that the installation of one of the Windows components used to display the help has been damaged.
(I'm running Win7 SP1 without problems, so I don't think it is that.)
Try the suggestions in this thread: