Solution : https://service.sap.com/sap/support/notes/139281 (SAP Service marketplace login required)
Key words :
additional key words helpapplication helpextended, display technology html, windows system directoryhh, windows directoryexchange, downward-compatible, htmlhtml-helphtmlhelpshh, upward-compatible, explicitly 'downgrade', control hhctrl, register hh
Related Notes :
| 101481 | Collective note: Application help and R/3 library |