Here has been wroten that I can use half life or counter strike to install EFS, so why when I try to install EFS with counter strike (I have CS in Steam) this didn't work? and why
here in the forum has been wroten that just half life can be used to install EFS?
Thanks.
Yea there is a problem.
The first link you posted was made before STEAM existed. When you got Half Life as soon as you bought Counter Strike. Ofcourse that information became inacurate as soon as Condition Zero came out.
When Condition Zero came out you didnt get Half Life with Counter Strike anymore. Thus you didnt have the correct files anymore.
That part of the site was kinda forgotten and not updated.
You need Half Life to play ESF. You get Counter Strike with Half Life. And since you have Half Life you have the correct files to play ESF.
If you buy Counter Strike. You get Condition Zero with it. And since you dont have Half Life some files are missing (that are part of Half Life itself) wich causes ESF to not work with it.