<s>
Turnpike	B-Protocol
was	O
a	O
British-developed	O
email	O
and	O
news	O
client	O
for	O
Microsoft	B-Application
Windows	I-Application
,	O
with	O
an	O
associated	O
program	O
for	O
handling	O
the	O
Internet	O
connection	O
.	O
</s>
<s>
The	O
software	O
,	O
originally	O
written	O
by	O
Chris	O
Hall	O
and	O
Richard	O
Clayton	O
(	O
who	O
had	O
previously	O
been	O
the	O
co-founders	O
and	O
principal	O
programmers	O
of	O
Locomotive	B-Device
Software	I-Device
)	O
,	O
first	O
appeared	O
in	O
1995	O
.	O
</s>
<s>
It	O
is	O
not	O
known	O
how	O
many	O
of	O
these	O
subscribers	O
used	O
Turnpike	B-Protocol
,	O
but	O
it	O
must	O
have	O
been	O
a	O
substantial	O
number	O
.	O
</s>
<s>
The	O
Easy	O
Net	O
book	O
by	O
Keith	O
Teare	O
,	O
published	O
at	O
the	O
end	O
of	O
1995	O
,	O
contained	O
a	O
brief	O
review	O
of	O
version	O
1.03	O
of	O
Turnpike	B-Protocol
,	O
which	O
had	O
been	O
released	O
in	O
July	O
of	O
that	O
year	O
.	O
</s>
<s>
The	O
suite	O
consisted	O
of	O
two	O
principal	O
components	O
,	O
Connect	O
,	O
which	O
interfaced	O
with	O
the	O
modem	O
driver	O
or	O
LAN	O
,	O
and	O
Turnpike	B-Protocol
,	O
which	O
controlled	O
,	O
sorted	O
and	O
displayed	O
news	O
articles	O
and	O
email	O
.	O
</s>
<s>
The	O
Connect	O
window	O
also	O
provided	O
telnet	B-Protocol
,	O
finger	O
,	O
ping	B-Protocol
,	O
and	O
traceroute	B-Protocol
functions	O
,	O
call	O
cost	O
monitoring	O
for	O
dialup	O
connections	O
,	O
and	O
,	O
in	O
earlier	O
versions	O
and	O
those	O
upgraded	O
therefrom	O
,	O
Ipswitch	O
's	O
WS_FTP	O
;	O
it	O
had	O
up	O
to	O
20	O
buttons	O
which	O
linked	O
to	O
these	O
functions	O
and	O
any	O
other	O
application	O
the	O
user	O
chose	O
to	O
configure	O
(	O
by	O
default	O
including	O
Internet	B-Application
Explorer	I-Application
)	O
.	O
</s>
<s>
Prior	O
to	O
version	O
6	O
the	O
Turnpike	B-Protocol
component	O
was	O
a	O
stand-alone	O
executable	O
whilst	O
from	O
version	O
6	O
onwards	O
it	O
was	O
implemented	O
as	O
a	O
Windows	O
Shell	O
namespace	O
extension	O
.	O
</s>
<s>
Mail	O
filtering	O
was	O
done	O
using	O
Unix-like	O
regular	B-Language
expressions	I-Language
.	O
</s>
<s>
Versions	O
4	O
and	O
beyond	O
were	O
32-bit	O
,	O
and	O
early	O
versions	O
of	O
5	O
included	O
PGP	B-Application
.	O
</s>
<s>
It	O
works	O
with	O
Windows	O
up	O
to	O
(	O
as	O
of	O
2016	O
)	O
Windows	O
version	O
10	O
,	O
with	O
the	O
caveat	O
that	O
Turnpike	B-Protocol
version	O
6	O
(	O
due	O
to	O
the	O
shell	O
namespace	O
usage	O
)	O
only	O
works	O
with	O
the	O
32-bit	O
,	O
not	O
the	O
64-bit	O
,	O
variants	O
of	O
Windows	O
7	O
onwards	O
(	O
it	O
works	O
satisfactorily	O
in	O
virtual	B-Architecture
machines	I-Architecture
running	O
32-bit	B-Application
Windows	I-Application
hosted	O
on	O
machines	O
running	O
the	O
64-bit	O
versions	O
)	O
.	O
</s>
<s>
Although	O
no	O
Linux	B-Application
port	O
was	O
produced	O
,	O
all	O
versions	O
worked	O
satisfactorily	O
under	O
packages	O
such	O
as	O
the	O
proprietary	O
Win4Lin	O
.	O
</s>
<s>
Versions	O
up	O
to	O
and	O
including	O
5	O
also	O
worked	O
quite	O
well	O
under	O
Wine	B-Application
.	O
</s>
<s>
Versions	O
5	O
and	O
6	O
received	O
the	O
Good	B-Protocol
Netkeeping	I-Protocol
Seal	I-Protocol
of	I-Protocol
Approval	I-Protocol
in	O
2011	O
.	O
</s>
<s>
Although	O
Turnpike	B-Protocol
is	O
no	O
longer	O
supported	O
by	O
its	O
manufacturers	O
(	O
who	O
have	O
themselves	O
been	O
the	O
subject	O
of	O
assorted	O
takeovers	O
,	O
mergers	O
,	O
etcetera	O
)	O
,	O
there	O
is	O
still	O
(	O
2017	O
)	O
a	O
reasonably	O
active	O
usenet	B-Application
newsgroup	I-Application
-	O
demon.ip.support.turnpike	O
,	O
populated	O
by	O
knowledgeable	O
users	O
of	O
the	O
software	O
.	O
</s>
<s>
[	O
As	O
its	O
name	O
implies	O
,	O
the	O
newsgroup	B-Application
was	O
originally	O
specific	O
to	O
Demon	O
,	O
but	O
-	O
like	O
the	O
microsoft.public	O
.	O
</s>
<s>
*	O
hierarchy	O
of	O
newsgroups	B-Application
-	O
it	O
is	O
now	O
carried	O
by	O
many	O
of	O
the	O
remaining	O
news	O
servers.	O
]	O
</s>
