<s>
SharpMusique	B-Application
was	O
a	O
rewrite	O
in	O
C#	B-Application
of	O
PyMusique	B-Application
(	O
written	O
in	O
Python	B-Language
)	O
,	O
both	O
programs	O
were	O
iTunes	B-Operating_System
Music	O
Store	O
clients	O
,	O
allowing	O
songs	O
to	O
be	O
downloaded	O
from	O
the	O
iTunes	B-Operating_System
Music	O
Store	O
without	O
DRM	O
.	O
</s>
<s>
PyMusique	B-Application
was	O
written	O
by	O
Travis	O
Watkins	O
,	O
Cody	O
Brocious	O
,	O
and	O
Jon	O
Lech	O
Johansen	O
for	O
the	O
purpose	O
of	O
allowing	O
downloading	O
songs	O
from	O
the	O
iTunes	B-Operating_System
Music	O
Store	O
before	O
DRM	O
was	O
applied	O
to	O
them	O
from	O
a	O
Mac	O
,	O
Linux	B-Application
,	O
or	O
Windows	O
computer	O
.	O
</s>
<s>
Although	O
the	O
iTunes	B-Operating_System
Music	O
Store	O
's	O
method	O
of	O
applying	O
FairPlay	B-Operating_System
DRM	I-Operating_System
to	O
the	O
songs	O
was	O
widely	O
known	O
,	O
PyMusique	B-Application
was	O
the	O
first	O
program	O
to	O
exploit	O
a	O
loophole	O
in	O
the	O
system	O
,	O
allowing	O
users	O
to	O
download	O
songs	O
without	O
the	O
DRM	O
restriction	O
.	O
</s>
<s>
On	O
March	O
22	O
,	O
2005	O
,	O
Apple	O
released	O
an	O
update	O
that	O
rendered	O
PyMusique	B-Application
non-functional	O
.	O
</s>
<s>
The	O
same	O
day	O
,	O
a	O
new	O
version	O
of	O
PyMusique	B-Application
was	O
released	O
that	O
worked	O
again	O
,	O
only	O
without	O
Windows	O
compatibility	O
.	O
</s>
<s>
On	O
March	O
31	O
,	O
2005	O
,	O
Johansen	O
released	O
SharpMusique	B-Application
,	O
the	O
Windows-compatible	O
port	O
of	O
PyMusique	B-Application
.	O
</s>
<s>
PyMusique	B-Application
also	O
allowed	O
songs	O
to	O
be	O
re-downloaded	O
for	O
free	O
,	O
in	O
case	O
a	O
user	O
accidentally	O
deleted	O
their	O
purchase	O
.	O
</s>
<s>
Within	O
a	O
number	O
of	O
days	O
,	O
Apple	O
broke	O
the	O
client	O
by	O
forcing	O
all	O
users	O
to	O
upgrade	O
to	O
iTunes	B-Operating_System
4.9	O
.	O
</s>
<s>
In	O
response	O
to	O
Apple	O
's	O
actions	O
,	O
Johansen	O
released	O
PyMusique	B-Application
version	O
0.4	O
on	O
March	O
22	O
,	O
2005	O
,	O
which	O
allows	O
users	O
once	O
again	O
to	O
use	O
PyMusique	B-Application
with	O
Apple	O
's	O
store	O
.	O
</s>
<s>
With	O
the	O
launch	O
of	O
0.4	O
,	O
developer	O
Cody	O
Brocious	O
stated	O
on	O
his	O
blog	O
that	O
no	O
future	O
versions	O
of	O
PyMusique	B-Application
would	O
be	O
released	O
with	O
Microsoft	B-Application
Windows	I-Application
support	O
.	O
</s>
<s>
In	O
September	O
2005	O
,	O
Jon	O
Lech	O
Johansen	O
released	O
SharpMusique	B-Application
,	O
written	O
in	O
C#	B-Application
,	O
which	O
took	O
over	O
where	O
PyMusique	B-Application
left	O
off	O
.	O
</s>
<s>
The	O
iTunes	B-Operating_System
protocol	O
changed	O
,	O
and	O
users	O
of	O
SharpMusique	B-Application
were	O
able	O
to	O
release	O
primitive	O
patches	O
to	O
account	O
for	O
the	O
changes	O
until	O
mid-2006	O
,	O
when	O
the	O
protocol	O
changed	O
drastically	O
.	O
</s>
<s>
Around	O
this	O
time	O
,	O
without	O
public	O
announcement	O
,	O
the	O
download	O
links	O
for	O
SharpMusique	B-Application
and	O
its	O
source	O
were	O
removed	O
from	O
Johansen	O
's	O
website	O
.	O
</s>
