KTools - Kextract and Kgroup Win32 binaries. Handle BUILD group files (*.GRP) 
by Mathieu Olivier

(source code and Win32 binaries are in the ZIP files)
http://blood.sourceforge.net/rebuild.php

Includes: 

-kextract.exe Gold v0.0 8-7-2000
Extracts files from group format.

-kgroup.exe Gold v0.0 8-7-2000
Puts files in group format.

Includes: Source 8-13-2004