<s>
iShell	B-Application
is	O
a	O
traditional	O
multimedia	O
authoring	O
environment	O
,	O
similar	O
in	O
many	O
ways	O
to	O
Macromedia	B-Operating_System
Director	I-Operating_System
.	O
</s>
<s>
A	O
descendant	O
of	O
the	O
Apple	B-Application
Media	I-Application
Tool	I-Application
,	O
iShell	B-Application
is	O
designed	O
to	O
be	O
easy	O
to	O
use	O
,	O
but	O
powerful	O
enough	O
to	O
grow	O
as	O
a	O
user	O
's	O
skill	O
set	O
increases	O
.	O
</s>
<s>
iShell	B-Application
was	O
first	O
released	O
by	O
Tribeworks	O
in	O
1999	O
.	O
</s>
<s>
In	O
July	O
2006	O
,	O
acquired	O
all	O
rights	O
to	O
iShell	B-Application
.	O
</s>
<s>
The	O
current	O
version	O
of	O
iShell	B-Application
is	O
4.5r7	O
.	O
</s>
<s>
iShell	B-Application
uses	O
the	O
Key	O
programming	O
language	O
,	O
which	O
is	O
based	O
on	O
Eiffel	B-Language
.	O
</s>
<s>
This	O
language	O
was	O
previously	O
known	O
as	O
the	O
Apple	O
Media	O
Language	O
(	O
AML	O
)	O
which	O
was	O
part	O
of	O
the	O
Apple	B-Application
Media	I-Application
Tool	I-Application
.	O
</s>
<s>
Both	O
iShell	B-Application
and	O
the	O
Apple	B-Application
Media	I-Application
Tool	I-Application
were	O
developed	O
by	O
Patrick	O
Soquet	O
,	O
one	O
of	O
the	O
founders	O
of	O
Tribeworks	O
.	O
</s>
<s>
iShell	B-Application
differs	O
in	O
its	O
distribution	O
model	O
from	O
similar	O
applications	O
,	O
allowing	O
users	O
access	O
to	O
the	O
source	O
code	O
.	O
</s>
<s>
Numerous	O
developers	O
have	O
taken	O
advantage	O
of	O
iShell	B-Application
's	O
community-source	O
model	O
to	O
build	O
commercial	O
plugins	O
for	O
the	O
software	O
.	O
</s>
<s>
Kromo	O
:	O
Adds	O
several	O
features	O
to	O
iShell	B-Application
,	O
including	O
database	O
integration	O
and	O
filesystem	O
functions	O
.	O
</s>
<s>
Spunk	O
:	O
A	O
companion	O
program	O
to	O
Kromo	O
,	O
allows	O
developer	O
to	O
incorporate	O
web-based	O
content	O
into	O
iShell	B-Application
projects	O
.	O
</s>
<s>
ZebraSpeak	O
:	O
Adds	O
text-to-speech	O
and	O
advanced	O
keyboard	O
interaction	O
to	O
iShell	B-Application
.	O
</s>
<s>
ZebraTools	O
:	O
Adds	O
numerous	O
new	O
features	O
to	O
iShell	B-Application
.	O
</s>
