I wish I had something to solve this little problem also, since I'm suffering from the same thing. I've done some research and all I can find is the same guy on several forums including the microsoft newsgroup pimping his website that endlessly repeats that the error message " C00D1197: Cannot play the file " doesn't tell him anything that he can use to help. So, no help.
The other thing that shows up in the event viewer:
The description for Event ID ( 1900 ) in Source ( HHCTRL ) cannot be found. The local computer may not have the necessary registry information or message DLL files to display messages from a remote computer. You may be able to use the /AUXSOURCE= flag to retrieve this description; see Help and Support for details. The following information is part of the event: This operation can only function within HTML Help.
The thing that's giving me fits is that it started happening seemingly of it's own accord about 3 weeks ago. I haven't deleted, changed, or otherwise altered any files/folders/directories, not to mention that there wasn't a windows update or anything the week that happened. (not that I remember anyway)
Regardless, it's just some more info for the masses to chew on, if anyone comes up with any ideas, feel free to toss them out.