The wizwars1.2.reg file you have requested: Mods / Multiplayer / Wizard Wars / Half-Life: Wizard Wars Registry File - 0.39kb 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:
If you have Wizard Wars 1.2 on your computer and the patch says 1.2 is not installed it's probable that your registry has not been set correctly. This file will set your registry so you can apply the patch.