Everytime i run Half-Life i get an error saying it can find the vstdlib.dll so i dont know wat to do other than ask the people who have it to upload it and tell me where in their steam folder they found it
Listen, the way it works, is that steam launches the .gcf from your steamapps folder. The Half Life folder that's in steamapps/<yourname> is a folder steam creates once you launch the game. If you delete it, when you'll run the game it'll just recreate the folder.
The only difference it'll make is that you will lose your preferences, like settings, favorite servers and such.
So just delete that folder, it recreates it in a sec.