<s>
Go	B-Protocol
!	I-Protocol
Zilla	I-Protocol
is	O
a	O
proprietary	B-Application
download	B-Protocol
manager	I-Protocol
originally	O
developed	O
by	O
Aaron	O
Ostler	O
in	O
1995	O
,	O
and	O
later	O
purchased	O
by	O
Radiate	O
in	O
1999	O
,	O
for	O
use	O
on	O
Windows	B-Application
.	O
</s>
<s>
It	O
is	O
shareware	B-License
and	O
its	O
previous	O
ad	O
supported	O
version	O
drew	O
controversy	O
among	O
users	O
and	O
privacy	O
advocates	O
.	O
</s>
<s>
Go	B-Protocol
!	I-Protocol
Zilla	I-Protocol
was	O
one	O
of	O
many	O
download	B-Protocol
managers	I-Protocol
,	O
also	O
called	O
download	B-Protocol
accelerators	I-Protocol
.	O
</s>
<s>
Download	B-Protocol
accelerators	I-Protocol
allowed	O
users	O
to	O
stop	O
and	O
resume	O
partial	O
downloads	O
.	O
</s>
<s>
In	O
July	O
2000	O
the	O
software	O
won	O
PC	B-Device
Magazine	O
's	O
ZDNet	O
's	O
Seventh	O
Annual	O
Shareware	B-License
Award	O
for	O
Best	O
Utility	O
and	O
was	O
estimated	O
to	O
be	O
used	O
by	O
ten	O
million	O
people	O
at	O
that	O
time	O
.	O
</s>
<s>
In	O
January	O
2008	O
,	O
Go	B-Protocol
!	I-Protocol
Zilla	I-Protocol
was	O
acquired	O
by	O
Headlight	O
Software	O
,	O
and	O
Go	B-Protocol
!	I-Protocol
Zilla	I-Protocol
5	O
was	O
the	O
first	O
version	O
released	O
with	O
all	O
new	O
source	O
code	O
and	O
without	O
the	O
bundled	O
adware	O
,	O
which	O
had	O
caused	O
some	O
controversy	O
despite	O
notifying	O
users	O
that	O
adware	O
was	O
bundled	O
.	O
</s>
