<s>
Microsoft	B-Protocol
Compiled	I-Protocol
HTML	I-Protocol
Help	I-Protocol
is	O
a	O
Microsoft	O
proprietary	O
online	B-Protocol
help	I-Protocol
format	O
,	O
consisting	O
of	O
a	O
collection	O
of	O
HTML	B-Language
pages	O
,	O
an	O
index	O
and	O
other	O
navigation	O
tools	O
.	O
</s>
<s>
The	O
files	O
are	O
compressed	O
and	O
deployed	O
in	O
a	O
binary	O
format	O
with	O
the	O
extension	O
.CHM	O
,	O
for	O
Compiled	B-Protocol
HTML	I-Protocol
.	O
</s>
<s>
It	O
was	O
introduced	O
as	O
the	O
successor	O
to	O
Microsoft	O
WinHelp	O
with	O
the	O
release	O
of	O
Windows	O
95	O
OSR	O
2.5	O
and	O
consequently	O
,	O
Windows	B-Device
98	I-Device
.	O
</s>
<s>
Within	O
the	O
Windows	O
NT	O
family	O
,	O
the	O
CHM	O
file	O
support	O
is	O
introduced	O
in	O
Windows	B-Device
NT	I-Device
4.0	I-Device
and	O
is	O
still	O
supported	O
in	O
Windows	B-Application
11	I-Application
.	O
</s>
<s>
MonthYearDescriptionFebruary1996Microsoft	O
announces	O
plans	O
to	O
stop	O
development	O
of	O
WinHelp	O
and	O
start	O
development	O
on	O
HTML	B-Language
Help.August1997HTML	O
Help	O
1.0	O
(	O
HH	O
1.0	O
)	O
is	O
released	O
with	O
Internet	O
Explorer	O
4.February1998HTML	O
Help	O
1.1a	O
ships	O
with	O
Windows	O
98.January2000HTML	O
Help	O
1.3	O
ships	O
with	O
Windows	O
2000.JulyHTML	O
Help	O
1.32	O
releases	O
with	O
Internet	B-Protocol
Explorer	I-Protocol
5.5	I-Protocol
and	O
Windows	O
Me.October2001HTML	O
Help	O
1.33	O
releases	O
with	O
Internet	B-Application
Explorer	I-Application
6	I-Application
and	O
Windows	O
XP.MarchAt	O
the	O
WritersUA	O
(	O
formerly	O
WinWriters	O
)	O
conference	O
,	O
Microsoft	O
announces	O
plans	O
for	O
a	O
new	O
help	O
platform	O
,	O
Help	O
2	O
,	O
which	O
is	O
also	O
HTML	B-Language
based.January2003Microsoft	O
decides	O
not	O
to	O
release	O
Microsoft	B-Protocol
Help	I-Protocol
2	I-Protocol
as	O
a	O
general	O
Help	O
platform	O
.	O
</s>
<s>
Microsoft	O
has	O
announced	O
that	O
they	O
do	O
not	O
intend	O
to	O
add	O
any	O
new	O
features	O
to	O
HTML	B-Protocol
Help	I-Protocol
.	O
</s>
<s>
It	O
contains	O
a	O
set	O
of	O
HTML	B-Language
files	I-Language
,	O
a	O
hyperlinked	O
table	O
of	O
contents	O
,	O
and	O
an	O
index	O
file	O
.	O
</s>
<s>
The	O
file	O
starts	O
with	O
bytes	O
"	O
ITSF	O
"	O
(	O
in	O
ASCII	B-Protocol
)	O
,	O
for	O
"	O
Info-Tech	O
Storage	O
Format	O
"	O
,	O
which	O
is	O
the	O
internal	O
name	O
given	O
by	O
Microsoft	O
to	O
the	O
generic	O
storage	O
file	O
format	O
used	O
in	O
with	O
CHM	O
files	O
.	O
</s>
<s>
The	O
Microsoft	B-Operating_System
Reader	I-Operating_System
's	O
.lit	B-Operating_System
file	O
format	O
is	O
a	O
modification	O
of	O
the	O
HTML	B-Protocol
Help	I-Protocol
CHM	O
format	O
.	O
</s>
<s>
Sumatra	B-Language
PDF	I-Language
supports	O
viewing	O
CHM	O
documents	O
since	O
version	O
1.9	O
.	O
</s>
<s>
Various	O
applications	O
,	O
such	O
as	O
HTML	B-Protocol
Help	I-Protocol
Workshop	O
and	O
7-Zip	B-Language
can	O
decompile	O
CHM	O
files	O
.	O
</s>
<s>
Microsoft	O
's	O
HTML	B-Protocol
Help	I-Protocol
Workshop	O
and	O
Compiler	B-Language
generate	O
CHM	O
files	O
by	O
instructions	O
stored	O
in	O
a	O
HTML	B-Protocol
Help	I-Protocol
project	O
.	O
</s>
<s>
The	O
file	O
name	O
of	O
such	O
a	O
project	O
has	O
the	O
extension	O
.HHP	O
and	O
the	O
file	O
is	O
just	O
a	O
text	O
with	O
the	O
INI	B-Protocol
file	I-Protocol
format	O
.	O
</s>
<s>
The	O
Free	B-Operating_System
Pascal	I-Operating_System
project	O
has	O
a	O
compiler	B-Language
(	O
chmcmd	O
)	O
that	O
can	O
create	O
CHM	O
files	O
in	O
a	O
multiplatform	O
way	O
.	O
</s>
<s>
Qt	O
:	O
Okular	B-Language
,	O
,	O
</s>
<s>
Other	O
/	O
Cross-platform	O
:	O
xCHM	B-Language
,	O
,	O
</s>
