<s>
PowWow	B-Protocol
was	O
the	O
first	O
Internet	O
instant	B-Application
message	I-Application
and	O
chat	B-Protocol
programs	I-Protocol
for	O
Windows	B-Application
.	O
</s>
<s>
Many	O
of	O
the	O
features	O
found	O
in	O
contemporary	O
instant	B-Application
messaging	I-Application
programs	O
were	O
first	O
introduced	O
in	O
PowWow	B-Protocol
.	O
</s>
<s>
The	O
program	O
also	O
had	O
several	O
innovative	O
features	O
such	O
as	O
allowing	O
users	O
to	O
talk	O
with	O
each	O
other	O
using	O
VoIP	B-Application
,	O
a	O
shared	O
whiteboard	O
,	O
a	O
built-in	O
speech	O
synthesizer	O
,	O
WAV	O
sound	O
file	O
playing	O
,	O
offline	O
transmittal	O
of	O
instant	B-Application
messages	I-Application
via	O
POP/SMTP	O
,	O
and	O
the	O
ability	O
for	O
users	O
to	O
share	O
their	O
web	O
surfing	O
experience	O
concurrently	O
by	O
redirecting	O
either	O
party	O
to	O
a	O
new	O
URL	O
when	O
another	O
navigates	O
elsewhere	O
.	O
</s>
<s>
In	O
the	O
late	O
1990s	O
,	O
Tribal	O
Voice	O
began	O
to	O
OEM	O
the	O
PowWow	B-Protocol
software	O
in	O
order	O
to	O
increase	O
market	O
share	O
.	O
</s>
<s>
PowWow	B-Protocol
was	O
one	O
of	O
the	O
first	O
instant	B-Application
messaging	I-Application
programs	O
to	O
provide	O
interoperability	O
between	O
multiple	O
instant	B-Application
messaging	I-Application
clients	O
,	O
being	O
compatible	O
with	O
both	O
AOL	B-Protocol
Instant	I-Protocol
Messenger	I-Protocol
(	O
AIM	O
)	O
and	O
Microsoft	O
's	O
MSN	B-Protocol
Messenger	I-Protocol
.	O
</s>
<s>
In	O
the	O
late	O
1990s	O
AOL	O
sued	O
Tribal	O
Voice	O
for	O
use	O
of	O
the	O
phrase	O
'	O
buddy	O
list	O
 '	O
and	O
made	O
repeated	O
efforts	O
to	O
block	O
interoperability	O
between	O
their	O
instant	B-Application
messaging	I-Application
client	O
and	O
Tribal	O
Voice	O
's	O
,	O
as	O
well	O
as	O
those	O
of	O
other	O
companies	O
.	O
</s>
