when I try to extract the halflife.wad file using GCFscape, here' what it tells me:
C:Program FilesValveSteamSteamAppshalf-life.gcf loaded.
Extracting to C:Program FilesValveSteamSteamAppsgarion_oldwolfhalf-lifevalve.
Error writing C:Program FilesValveSteamSteamAppsgarion_oldwolfhalf-lifevalvehalflife.wad (Failed to write all physical data.)
Done.
What's causing that?