HKEY_LOCAL_MACHINE\Software\microsoft\windows\html help
    Msimn.chm = DELETE
    Wab.chm = DELETE
    IEXPLORE.CHM = DELETE
    UPDATE.CHM = DELETE
    IESUPP.CHM = DELETE
    FIND.CHM = DELETE
    ACCESSIB.CHM = DELETE
    IEEULA.CHM = DELETE
    RATINGS.CHM = DELETE
    MSWALLET.CHM = DELETE
    AMOVIE.CHM = DELETE

HKEY_LOCAL_MACHINE\Software\microsoft\windows\html help
    Msimn.chm = #SYSTEMROOT#\HELP
    Wab.chm = #SYSTEMROOT#\HELP
    IEXPLORE.CHM = #SYSTEMROOT#\HELP
    UPDATE.CHM = #SYSTEMROOT#\HELP
    IESUPP.CHM = #SYSTEMROOT#\HELP
    FIND.CHM = #SYSTEMROOT#\HELP
    ACCESSIB.CHM = #SYSTEMROOT#\HELP
    IEEULA.CHM = #SYSTEMROOT#\HELP
    RATINGS.CHM = #SYSTEMROOT#\HELP
    MSWALLET.CHM = #SYSTEMROOT#\HELP
    AMOVIE.CHM = #SYSTEMROOT#\HELP