If you think that the DOS version of Warcraft II is frustrating, try playing the original Warcraft: Orcs & Humans. That'll make you appreciate Warcraft II a whole lot more. In W1, you can't just select a unit, click somewhere on the map and watch him go do the most appropriate action for that location (walk to, attack, harvest, repair, etc.). You have to explicitly mouse over to the command bar and choose the action, even if it's simply Move, then mouse back to the main window and click on the destination. Fortunately, there's a way to improve the control scheme with the help of a 3rd party utility, which makes the game much less frustrating to play, but playing without it first definitely gives you an appreciation for how much of an improvement Warcraft II's control scheme was (even if later versions improved it even more).