Windows 7 USB/DVD Download Tool

source: http://store.microsoft.com/Help/ISO-Tool
Tool for making a bootable USB-stick with just an ISO

Installation

To install the Windows 7 USB/DVD Download tool:

1. Click to open the Windows 7 USB/DVD Download tool installation file.
2. When you are prompted to either save the file to disk or run it, choose Run.
3. Follow the steps in the setup dialogs. You'll have the option to specify where to install the Windows 7 USB/DVD Download Tool.

Note: You need to be an administrator on the computer you are installing the Windows 7 USB/DVD Download tool on. The tool requires the Microsoft .NET Framework version 2.0 or higher.

System Requirements 

• 
  
  Windows XP SP2, Windows Vista, or Windows 7 (32-bit or 64-bit)
• 
  
  Pentium 233-megahertz (MHz) processor or faster (300 MHz is recommended)
• 
  
  50MB of free space on your hard drive
• 
  
  DVD-R drive or 4GB removable USB flash drive