lost world book software

[Chris Volpe]

Hi all -
I went to fire up World Book and received an error message stating a 
crucial folder had been lost and I needed to reinstall. I trashed the 
orphaned copy thinking the World Book CD would allow me to reinstall - 
but that CD contains only media files, not the actual application. I 
tried running software restore, but it grays out the custom install 
option. I quit because I don't want to do the easy install and 
reinstall all of my apps - just World Book. Is there any one who can 
tell me how to reinstall it?
TIA
Chris