title: Perforce Windows Explorer plugin: No workspace has been set for this connection
body: <p>I'm trying to use Perforce from Windows Explorer (Windows 7), but the Perforce context menu doesn't have any of the useful commands (checkout, submit, etc). Instead it has a disabled entry that says, "No workspace has been set for this connection."</p>
  
  <p>The troubleshooting page I found says, "The problem is that P4EXP [Perforce's Windows Explorer plugin) ignores p4v’s configuration. You can configure P4EXP from the command line." It then explains how to do that by entering three "p4 set" commands.</p>
  
  <p>But when I enter those commands, they have no effect whatever. And I'm not sure why they should; I got the information I needed to enter (client name, port, and username) by running the "p4 client -o" command. In other words, I entered setting into P4 that I got from P4. There must be something else I need to do, or it would have worked from the get-go. But what?</p>