The zero_hour_mod_manager_1.2.exe file you have requested: Utilities / INI Tools / Zero Hour Mod Manager 1.2 - 1.79mb is not available. Perhaps try browsing all files for the game C&C: Generals Zero Hour and upload any files you want to share or are missing. This is the only information we could locate:
Here's a very handy mod swapper returning with version 1.1. It's more user-friendly in the way that it more automates the way to generate your own compatible mods with this. I'd suggest that everyone making a mod less than 30 MB ought to use this to incorporate their mod.