The zhplugin-0.3.2.zip file you have requested: Modifications / Zombie Horde / Zombie Horde Plugin v0.3.2 - 4.85mb is not available. Perhaps try browsing all files for the game Counter-Strike: Source and upload any files you want to share or are missing. This is the only information we could locate:
ZH plugin 0.3.2. Unzip and read README.txt. An updated version of Zombie Horde, a server side modification for Counter-Strike: Source. The modification is implemented in the form of a single server plugin.