<s>
E	B-Application
is	O
the	O
text	B-Application
editor	I-Application
which	O
was	O
made	O
part	O
of	O
PC	B-Operating_System
DOS	I-Operating_System
with	O
version	O
6.1	O
in	O
June	O
1993	O
,	O
in	O
February	O
1995	O
with	O
version	O
7	O
and	O
later	O
with	O
PC	B-Operating_System
DOS	I-Operating_System
2000	O
.	O
</s>
<s>
In	O
version	O
6.1	O
,	O
IBM	O
dropped	O
QBASIC	B-Language
,	O
which	O
,	O
in	O
its	O
edit	B-Application
mode	O
,	O
was	O
also	O
the	O
system	O
text	B-Application
editor	I-Application
.	O
</s>
<s>
It	O
was	O
necessary	O
to	O
provide	O
some	O
sort	O
of	O
editor	O
,	O
so	O
IBM	O
chose	O
to	O
adapt	O
and	O
substantially	O
extend	O
its	O
OS/2	B-Application
System	O
Editor	O
(	O
1986	O
)	O
,	O
a	O
minimally	O
functional	O
member	O
of	O
the	O
E	B-Application
family	O
of	O
Editors	O
.	O
</s>
<s>
The	O
DOS	B-Device
version	O
is	O
extended	O
with	O
a	O
wide	O
array	O
of	O
functions	O
that	O
are	O
usually	O
associated	O
with	O
more	O
functional	O
versions	O
of	O
the	O
E	B-Application
editor	O
family	O
(	O
see	O
below	O
)	O
.	O
</s>
<s>
In	O
version	O
7	O
,	O
IBM	O
added	O
the	O
REXX	B-Language
language	O
to	O
DOS	B-Device
,	O
restoring	O
programmability	O
to	O
the	O
basic	O
box	O
.	O
</s>
<s>
IBM	O
also	O
provided	O
E	B-Application
with	O
OS/2	B-Application
.	O
</s>
<s>
The	O
features	O
include	O
(	O
for	O
PC	B-Operating_System
DOS	I-Operating_System
7	O
)	O
:	O
</s>
<s>
E	B-Application
for	O
PC	B-Operating_System
DOS	I-Operating_System
consists	O
of	O
five	O
files	O
:	O
</s>
<s>
BROWSE.COM	O
--	O
loads	O
a	O
file	O
into	O
E	B-Application
in	O
read-only	O
mode	O
.	O
</s>
<s>
Since	O
no	O
tool	O
was	O
provided	O
for	O
building	O
other	O
profiles	O
besides	O
the	O
supplied	O
E.EX	O
,	O
PC	B-Operating_System
DOS	I-Operating_System
users	O
have	O
limited	O
access	O
to	O
the	O
full	O
extensibility	O
offered	O
by	O
the	O
version	O
3	O
of	O
E	B-Application
(	O
e3	O
)	O
available	O
to	O
IBM	O
programmers	O
themselves	O
.	O
</s>
<s>
For	O
PC	B-Operating_System
DOS	I-Operating_System
owners	O
who	O
have	O
moved	O
on	O
to	O
other	O
operating	O
systems	O
,	O
E	B-Application
can	O
be	O
run	O
with	O
the	O
use	O
of	O
a	O
DOS	B-Device
emulator	O
(	O
e.g.	O
</s>
<s>
DOSBox	B-Application
)	O
or	O
with	O
DOS	B-Device
virtualization	B-General_Concept
software	O
(	O
e.g.	O
</s>
<s>
DOSEMU	B-Application
or	O
NTVDM	O
)	O
.	O
</s>
<s>
E	B-Application
runs	O
quite	O
successfully	O
under	O
the	O
Windows	O
NT	O
32-bit	O
DOS	B-Device
prompt	O
,	O
for	O
example	O
.	O
</s>
<s>
To	O
run	O
the	O
E	B-Application
Editor	O
under	O
OS/2	B-Application
,	O
you	O
must	O
swap	O
the	O
first	O
two	O
directories	O
in	O
PATH	O
statement	O
of	O
AUTOEXEC.BAT	O
.	O
</s>
<s>
Put	O
the	O
E	B-Application
files	O
in	O
\OS2\MDOS	O
directory	O
.	O
</s>
<s>
E	B-Application
v3.12	O
was	O
also	O
supplied	O
in	O
OS/2	B-Application
PPC	O
edition	O
.	O
</s>
<s>
The	O
history	O
of	O
the	O
PC	B-Operating_System
DOS	I-Operating_System
version	O
of	O
E	B-Application
begins	O
with	O
Personal	B-Application
Editor	I-Application
,	O
a	O
key	O
configurable	O
editor	O
that	O
enabled	O
limited	O
programming	O
using	O
a	O
GML-like	O
language	O
.	O
</s>
<s>
Personal	B-Application
Editor	I-Application
was	O
initially	O
released	O
in	O
1982	O
and	O
became	O
an	O
IBM	O
product	O
not	O
long	O
after	O
.	O
</s>
<s>
Limitations	O
in	O
Personal	B-Application
Editor	I-Application
led	O
to	O
the	O
development	O
and	O
release	O
in	O
1984	O
of	O
the	O
E	B-Application
editor	O
,	O
a	O
much	O
faster	O
editor	O
that	O
supported	O
very	O
long	O
files	O
and	O
included	O
a	O
substantially	O
enhanced	O
user	O
interface	O
.	O
</s>
<s>
E2	O
,	O
released	O
in	O
1985	O
,	O
provided	O
enhanced	O
programmability	O
using	O
a	O
REXX-like	O
language	O
.	O
</s>
<s>
The	O
OS/2	B-Application
System	O
Editor	O
was	O
developed	O
by	O
the	O
E	B-Application
programming	O
team	O
at	O
the	O
request	O
of	O
the	O
OS/2	B-Application
Development	O
team	O
.	O
</s>
<s>
It	O
was	O
designed	O
to	O
be	O
a	O
fast	O
and	O
highly	O
functional	O
text	B-Application
editor	I-Application
with	O
a	O
minimal	O
number	O
of	O
features	O
and	O
no	O
configurability	O
.	O
</s>
<s>
EPM	O
was	O
later	O
released	O
as	O
the	O
OS/2	B-Application
Enhanced	O
Editor	O
.	O
</s>
<s>
The	O
popular	O
SlickEdit	B-Application
shares	O
a	O
common	O
heritage	O
,	O
having	O
been	O
written	O
by	O
the	O
original	O
developer	O
of	O
E3	O
.	O
</s>
<s>
Other	O
versions	O
of	O
E	B-Application
family	O
editors	O
have	O
been	O
released	O
with	O
IBM	O
programming	O
products	O
.	O
</s>
<s>
There	O
are	O
several	O
acknowledged	O
E	B-Application
editor	O
family	O
clones	O
,	O
including	O
X2	O
,	O
which	O
both	O
reproduces	O
the	O
Rexx-like	O
EI	O
programming	O
language	O
used	O
in	O
E2	O
and	O
later	O
versions	O
of	O
E	B-Application
and	O
acknowledges	O
its	O
debt	O
in	O
its	O
documentation	O
.	O
</s>
