Where is the Global Assembly Cache (GAC)?

Situation: Being the noob like I am, you read about GAC so many times, but all the books or online help that you can get just keeps telling you to go to the GAC, but where is it?

Cause: I am a noob. Really, no one is at fault. I really should have been smart enough to know where it is without anybody telling me.

Solution. Go to c:\windows\assembly. That folder is called the GAC. To add a dll file, just drag and drop. To remove, just right click on the dll file and click uninstall.