Solution or Workaround
Where is the adocwin folder on the ArcDoc 8.0.1 CD-ROM?
The ArcDoc installation guide (installing_arcdoc.pdf) reads: "insert the ArcDoc CD into your CD-ROM device." and "Copy the 'adocwin' folder from the CD to your hard drive."
The folder is named 'help' not 'adocwin'.
The folder cannot be copied directly to the hard drive due to read only attributes on the copied 'help' folder. Create a folder called 'help' on the hard drive and then copy the contents of the ArcDoc CD-ROM's help folder to the help directory on the hard drive.