This is e-TeX, Version 3.14159-1.1 (INITEX)
**&etrip etrip
entering extended mode
(etrip.tex e-IniTeX: e-Trip format loaded.
This is the e-Trip test [96/10/18] for e-TeX v3.14159-1.1.
(You are using e-TeX version/revision 1.1)
Checking \interactionmode:

current interactionmode (l.166): nonstop

current interactionmode (l.167): scroll

current interactionmode (l.168): errorstop

! Bad interaction mode (-1).
l.173   \interactionmode=-1
                            \1 1 % nonstop
current interactionmode (l.173): nonstop
! Bad interaction mode (4).
l.174   \interactionmode=4
                            \1 1 % nonstop
current interactionmode (l.174): nonstop

current interactionmode (l.175): scroll

current interactionmode (l.175): scroll

current interactionmode (l.175): nonstop

current interactionmode (l.175): nonstop

current interactionmode (l.175): errorstop

current interactionmode (l.175): errorstop

current interactionmode (l.176): errorstop

1 (l.179)
1 (l.181)
current interactionmode (l.183): errorstop

current interactionmode (l.183): scroll

current interactionmode (l.183): nonstop