The wolf_source.exe file you have requested: Official Releases / Source Code / Wolf Source Code - 6.36mb is not available. Perhaps try browsing all files for the game Return To Castle Wolfenstein and upload any files you want to share or are missing. This is the only information we could locate:
Source code for RTCW. This is the source code necessary for making modifications for the single-player and multiplayer aspects of Return to Castle Wolfenstein.