If your application needs to temporarily store data (e.g. results of a test), use the local shared object functionality.
A local A local shared-object is stored on the user's machine. Depending on the operating system it is e.g.
•for Windows XP: Documents and Settings\userName\Application Data\Macromedia\Flash Player\#SharedObjects
•for Vista: \Users\userName\AppData\Roaming\Macromedia\Flash Player\#SharedObjects
Example
// Create a shared-object named "userData"
mySharedObject=SharedObject.getLocal("userData");