<s>
OBJREF	B-Device
is	O
the	O
name	O
of	O
the	O
structure	O
of	O
marshalled	O
interfaces	O
in	O
COM	B-Application
and	O
DCOM	B-Operating_System
.	O
</s>
<s>
Because	O
COM	B-Application
interfaces	O
can	O
only	O
be	O
called	O
directly	O
from	O
the	O
context	O
(	O
like	O
a	O
thread	O
,	O
process	O
or	O
machine	O
)	O
where	O
they	O
originated	O
,	O
when	O
they	O
are	O
needed	O
in	O
another	O
context	O
they	O
are	O
marshalled	O
in	O
this	O
structure	O
,	O
which	O
is	O
then	O
passed	O
to	O
the	O
destination	O
context	O
where	O
it	O
is	O
unmarshalled	O
to	O
a	O
proxy	O
that	O
takes	O
care	O
of	O
the	O
necessary	O
communication	O
,	O
for	O
example	O
passing	O
messages	O
or	O
network	O
packets	O
or	O
marshalling	B-Application
other	O
interfaces	O
passed	O
in	O
calls	O
.	O
</s>
<s>
The	O
string	O
bindings	O
are	O
null-terminated	O
records	O
specifying	O
connection	O
information	O
,	O
like	O
IP	B-Protocol
addresses	I-Protocol
,	O
and	O
the	O
security	O
bindings	O
are	O
null-terminated	O
records	O
specifying	O
authentication	O
information	O
.	O
</s>
