<s>
Context-sensitive	B-Protocol
help	I-Protocol
is	O
a	O
kind	O
of	O
online	B-Protocol
help	I-Protocol
that	O
is	O
obtained	O
from	O
a	O
specific	O
point	O
in	O
the	O
state	O
of	O
the	O
software	O
,	O
providing	O
help	O
for	O
the	O
situation	O
that	O
is	O
associated	O
with	O
that	O
state	O
.	O
</s>
<s>
Context-sensitive	B-Protocol
help	I-Protocol
,	O
as	O
opposed	O
to	O
general	O
online	B-Protocol
help	I-Protocol
or	O
online	O
manuals	O
,	O
does	O
not	O
need	O
to	O
be	O
accessible	O
for	O
reading	O
as	O
a	O
whole	O
.	O
</s>
<s>
Context-sensitive	B-Protocol
help	I-Protocol
can	O
be	O
implemented	O
using	O
tooltips	O
,	O
which	O
either	O
provide	O
a	O
terse	O
description	O
of	O
a	O
GUI	B-Application
widget	O
or	O
display	O
a	O
complete	O
topic	O
from	O
the	O
help	B-Protocol
file	I-Protocol
.	O
</s>
<s>
Other	O
commonly	O
used	O
ways	O
to	O
access	O
context-sensitive	B-Protocol
help	I-Protocol
start	O
by	O
clicking	O
a	O
button	O
.	O
</s>
<s>
Context-sensitive	B-Protocol
help	I-Protocol
is	O
most	O
used	O
in	O
,	O
but	O
is	O
not	O
limited	O
to	O
,	O
GUI	B-Application
environments	O
.	O
</s>
<s>
Examples	O
include	O
Apple	O
's	O
System	B-Operating_System
7	I-Operating_System
Balloon	B-Protocol
help	I-Protocol
,	O
Microsoft	O
's	O
WinHelp	O
,	O
OS/2	B-Application
'	O
s	O
INF	B-Language
Help	I-Language
or	O
Sun	O
's	O
JavaHelp	B-Protocol
.	O
</s>
<s>
An	O
example	O
of	O
context	B-Protocol
sensitive	I-Protocol
help	I-Protocol
familiar	O
to	O
most	O
Wikipedia	O
users	O
are	O
the	O
tooltips	O
that	O
show	O
previews	O
of	O
links	O
within	O
articles	O
,	O
helping	O
readers	O
to	O
determine	O
whether	O
following	O
the	O
link	O
is	O
valuable	O
prior	O
to	O
shifting	O
pages	O
.	O
</s>
<s>
A	O
similar	O
topic	O
is	O
embedded	O
help	O
,	O
which	O
can	O
be	O
thought	O
of	O
as	O
a	O
"	O
deeper	O
"	O
context-sensitive	B-Protocol
help	I-Protocol
.	O
</s>
