This directory contains the Valve Half-Life SDK for HL1.
Below is a list of the files and their contents.

README.txt                      - This file.
hl_sdk_v23.exe                  - The original Full SDK v2.3 with client 
                                  development tools etc.
                                  NOTE: This file is no longer available here but
                                  from http://metamod.org/files/sdk/hl_sdk_v23.exe
hl_sdk_v23_source.exe           - The original Standard SDK v2.3, i.e. only 
                                  sources and headers. Only the standard SDK
                                  is needed for Metamod plugin development.
hl_sdk_v23_source-update-p4.zip - A ZIP archive that can be extracted over 
                                  the original SDK v2.3 with updated files
                                  that were added/changed later by Valve without
                                  a SDK update.
hlsdk-2.3-p4.tar.gz             - The Standard SDK v2.3 with various fixes and
                                  updates, that Metamod is compiled against.
                                  Files are in Unix format.
hlsdk-2.3-p4.zip                - The Standard SDK v2.3 with various fixes and
                                  updates, that Metamod is compiled against.
                                  Files are in DOS format.
metamod.hlsdk-2.3-p4.patch      - A patch (diff) file against the original 
                                  Standard SDK v2.3, containing the changes made
                                  in the patched versions. File is in Unix format.
metamod.hlsdk-2.3-p4.txt        - Description of the various changes and updates
                                  made in the patched version.

The directories p<n> contain the files described above for version <n> of the
patch.

Please read the HL SDK License Agreement in SDK_EULA.txt before using the SDK.
[ICO]NameLast modifiedSizeDescription

[DIR]Parent Directory  -  
[   ]hl_sdk_v23_source-update-p4.zip31-Aug-2013 18:55 11KOriginal SDK update
[   ]hl_sdk_v23_source.exe05-Oct-2002 03:48 5.0MOriginal Std HL SDK
[TXT]metamod.hlsdk-2.3-p4.patch31-Aug-2013 18:57 61KPatch against orig SDK
[   ]hlsdk-2.3-p4.tar.gz31-Aug-2013 18:56 4.3MPatched HL SDK Linux
[   ]hlsdk-2.3-p4.zip31-Aug-2013 18:57 5.5MPatched HL SDK Windows
[DIR]p1/13-Aug-2008 12:50 - Patch version 1
[DIR]p2/13-Aug-2008 12:50 - Patch version 2
[DIR]p3/13-Aug-2008 12:50 - Patch version 3
[DIR]p4/31-Aug-2013 18:58 - Patch version 4 (curr)
[TXT]metamod.hlsdk-2.3-p4.txt31-Aug-2013 18:57 2.3KREADME