You can get PHM registry editor (google it) or you want to switch file browsers both total commander (free, get the newest beta) and Resco Explorer (not free) come with registry editors. There is also a program that you can run from your desktop, which if you want pm me and I'll dig up a link at home (unless someone else can point you to it). If you're still using the built in file browser then I suggest switching to either TC or Resco (TC if you're cheap). Even if you do I suggest trying PHM since its free. But honestly anything more than a quick edit and I suggest you use the desktop registry editor.