Oh, now I get it. You were not just interested in turning Auto-Suggestion off (what 524288 does), but to make the Auto-Suggestion field/bar/strip disappear (what 524288 does not do). Out of curiosity, I did try just
ValueTxt.InputType = Bit.Or(ValueTxt.InputType, 128) 'VARIATION_PASSWORD
and it seems to produce the same effect of not displaying Auto-Suggestion box (completely gone). As to the numeric keys (numeric/accented letters), they exist in all versions for me (be it no usage of Bit.Or or Bit.Or with with 524288 by itself, combo 524288 and 128, and 128 by itself). What I don't know is if this (just 128 by itself) works across API Levels (as noted above, I'm using 24).