For normal Half-life :
======================

copy the files into your cstrike directory (e.g. C:\Sierra\Half-life\cstrike)
start lagshot.exe
in the game press alt + l 
then press ^ for the console type: exec lagshot.cfg

if you havent got a console rename the hl executable to: hl -console 





For official Counter-Strike (generation-pack):
==============================================

copy the file into your cstrike directory (e.g. C:\Sierra\Counter-strike\cstrike)
start lagshot.exe
in the game press alt + l 
then press ^ for the console type: exec lagshot.cfg


if you havent got a console rename the cstrike executable to: cstrike -console   