Minecraft-Installer.com
@dakota: Is Minecraft installed properly? If not install Minecraft first.
You can check the correct Minecraft Installation on this way:
Open the Minecraft folder first...
Press Windows key + "r"
Put %appdata% in the field + Enter key (or click on OK)
Double-click on the folder .minecraft
Double-click on the folder versions
Here you can find several folders that were named after the installed Minecraft versions (e.g. 1.6.2 )
In each folder there have to be at least 2 files:
A JAR file (previsions: minecraft.jar, today [e.g. 1.6.2.jar]), that contains the CLASS files for the game
A JSON file, that contains the settings of the Minecraft version
If any of the files listed above is not available, delete the .minecraft folder completely and run Minecraft with the launcher again. Warning: Your Scores will be lost.
12:57:27 on 22.08.2015