hi install question

i want to know, since i played this game in a cafe and did not install it myself, will it work with counterstrike source from my steam client, also i downloaded the 1.2.3. full install, but the install button wont light up, eve when i change the adress

help

ESF is a Half-Life 1 mod. So, no it won't work with anything on the Source engine. That includes Half-Life : Source.