The halflife-admin-1.02.zip file you have requested: Tools and Utilities / Server / Admin Mod 1.02 - 406.28kb is not available. Perhaps try browsing all files for the game Half-Life and upload any files you want to share or are missing. This is the only information we could locate:
It is a plug-in replacement for the following mods: Phineas (v0.21) : The normal Half-Life mod with bots! Firearms rc2.1: If you haven't played it you must! Golden Eye 1.5: You loved it on the N64, now its on the pc! Counter-Strike (b6.6) This mod will let you give people access to your servers, without giving access to rcon. It also lets you define users who can access the server, each with a different password.