This is a quick and easy way to install won2 and start playing in no time.

If you have a half-life CD or Counter-strike retail pre 1.6, then skip this step.
If you don't have a half-life CD then download this: http://www.megaupload.com/?d=WJ0IBF6L. You will need to create a few folders for this to work properly. Go into your Hard drives main folder (C:) and create a folder called "Sierra" no quotes. Then inside Sierra, create another folder called Half-life. You will then install the rest of these files to that directory (Sierra/Half-life) inculding all the files above. Install that and now you should have half-life pre 1.5

Start here if you have a pre 1.6 half-life/CS CD
Next you want to download the half-life 1.5 patch also know as 1.1.1.0: files.filefront.com/hl1110exe/;986769;/fileinfo.html. Now you will be up to date and are able to play on any 1.5/won2 server. Unfortunately that patch lacks and in game server browser. Download this patch to get the won2 server browser in game: files.filefront.com/Half+Life+1111+Updat...64084;/fileinfo.html. Extract that to your Sierra Half-life or whatever directory the download from the first step created half-life. You should now have a fully functional won2 client. If you are going to play counter-strike then you will need to dll it seperately here: files.filefront.com/Counter+Strike+15+Fu...67157;/fileinfo.html

You can use this CD Key when it asks for it: 3184344916820
Any problems please post on the forums.