Free Download Portable Counter-Strike 1.6
With a full complement of real world pistols, rifles and shotguns, Counter-Strike's battle of terrorists and counter-terrorists became the basic blueprint for many modern team-based online shooters. Now enhanced with the power of the Source engine, the game features drastically improved visuals, enhancements on classic maps, offline skirmish play with AI bots and more.
(ONLINE & LAN Smile )
Minimum: 500 mhz processor, 96mb ram, 16mb video card, Windows 2000/XP/ME/SE, Mouse, Keyboard, Internet Connection
Recommended: 800 mhz processor, 128mb ram, 32mb+ video card, Windows 2000/XP, Mouse, Keyboard, Internet Connection
If your computer doesn't meet the minimum requirements that is probably the cause of any issue you are having.