listn , i just downloaded esf , now i got steam and i got half-life , and im a noob but that answer didnt help me at all ,c:\program files\valve\steam\steamapps\zero20098\half-life , thats what i get on my installer , it wont let me install it , so in english tell me what do i have to do , u said run it , wtf im not on computer every2 secounds like play the game on story mode or what ? i got the 1.1.1.0 patch , and steam is up to date this is the 1.2.3 version also , and i cant install it so help me plz !!