OS/2 HELP Format
Intel byte order

Information from File Format List 2.0 by Max Maischein.

--------!-CONTACT_INFO----------------------
If you notice any mistakes or omissions, please let me know!  It is only
with YOUR help that the list can continue to grow.  Please send
all changes to me rather than distributing a modified version of the list.

This file has been authored in the style of the INTERxxy.* file list
by Ralf Brown, and uses almost the same format.

Please read the file FILEFMTS.1ST before asking me any questions. You may find
that they have already been addressed.

         Max Maischein

Max Maischein, 2:244/1106.17
Max_Maischein@spam.fido.de
corion@informatik.uni-frankfurt.de
Corion on #coders@IRC
--------!-DISCLAIMER------------------------
DISCLAIMER:  THIS MATERIAL IS PROVIDED "AS IS".  I verify the information
contained in this list to the best of my ability, but I cannot be held
responsible for any problems caused by use or misuse of the information,
especially for those file formats foreign to the PC, like AMIGA or SUN file
formats. If an information it is marked "guesswork" or undocumented, you
should check it carefully to make sure your program will not break with
an unexpected value (and please let me know whether or not it works
the same way).

Information marked with "???" is known to be incomplete or guesswork.

Some file formats were not released by their creators, others are regarded
as proprietary, which means that if your programs deal with them, you might
be looking for trouble. I don't care about this.
--------------------------------------------

The OS/2 help files are different from the WinHelp help files,since the WinHelp
format is proprietary to MicroSoft because of the patented LZ-packing they
implemented.
OFFSET              Count TYPE   Description
0000h                   3 char   ID='HSP'
0003h                   1 byte   Flags :
                                   0 - INF style file
                                 1-3 - unknown
                                   4 - HLP style file
                                 Patching this file allows reading HLP files
                                 using the VIEW command, while HLP files seem to
                                 work with INF settings as well.
0005h                   1 word   Total size of header
0007h                   1 word   Unknown
????h                   other data
0047h                   ? char   ASCIIZ name of the HLP/INF file
EXTENSION:HLP,INF
OCCURENCES:OS/2
REFERENCE:INF02A.DOC
SEE ALSO:WinHelp HLP