Another very quick but useful tip that I first had to do several years back and most recently a few days ago was to have to tell Windows to ignore the usual security constraints and allow other data sources. Otherwise when you attempt to load e-books from these data sources, you will see the following:-
REGEDIT4 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\HTMLHelp] [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\HTMLHelp\1.x\ItssRestrictions] “MaxAllowedZone”=dword:00000001 “UrlAllowList”=”J:\” “NestedProtocolList”=”http:;ftp:”