The last sentence is a real gem. Zero trolling / Real question: What do you miss about CHM? My guess: It's a single package you can easily share and doesn't break once deployed (like a live website). :)
It was also fast, used quite minimal amount of resources even when there was a lot of diagrams included. Did I mention fast? Sure, generating an index could take a while - on PIO3/PIO4 drive with 486.
N.B. The first time I've read Time Management for System Administrators, it was CHM file I just copied onto my free (won in competition) Windows Mobile PDA.