Active X ControlInteractive TextboxMaking Power Point Games Fun!
Install Developer TabInstall Developer Tab
Click on Office Button
Then Click on Power Point Options located at the bottom
Select Show Developer Tab in the Ribbon
On the Developer Tab click on the Textbox icon on the Controls sectionA drawing i-bar will appear.Hold down with your left mouse and draw a box the size you desire.  The box will be white.

Active x control 2007