<s>
SIS	B-Language
is	O
an	O
acronym	O
that	O
stands	O
for	O
Software	B-Language
Installation	I-Language
Script	I-Language
,	O
the	O
standard	O
software	O
installation	O
package	O
format	O
for	O
Symbian	B-Operating_System
OS	I-Operating_System
.	O
</s>
<s>
SIS	B-Language
files	O
are	O
an	O
archive	O
,	O
containing	O
installation	O
instructions	O
,	O
the	O
application	O
file	O
(	O
usually	O
an	O
.APP	O
or	O
.EXE	O
file	O
)	O
,	O
and	O
its	O
dependencies	O
.	O
</s>
<s>
By	O
convention	O
.sisx	B-Language
denotes	O
a	O
signed	O
file	O
.	O
</s>
<s>
There	O
are	O
different	O
ways	O
how	O
a	O
SIS	B-Language
file	O
can	O
be	O
created	O
.	O
</s>
<s>
Then	O
use	O
the	O
makesis	O
and	O
signsis	O
utilities	O
that	O
processes	O
the	O
.pkg	O
file	O
and	O
creates	O
the	O
actual	O
SIS	B-Language
file	O
.	O
</s>
<s>
Other	O
alternatives	O
are	O
to	O
use	O
the	O
Carbide.c	B-Language
++	I-Language
IDE	O
that	O
automatically	O
builds	O
the	O
SIS	B-Language
file	O
as	O
part	O
of	O
the	O
build	O
process	O
or	O
to	O
graphically	O
define	O
and	O
create	O
the	O
installation	O
package	O
using	O
PackageForge	B-Language
.	O
</s>
