step1
Make Flash animation with Adobe Flash CS5 or Flash Banner Wizard. Copy the Flash .swf file to the SAME folder as your Powerpoint .ppt file.

step2

Open the Powerpoint .ppt or .pptx file with Microsoft Powerpoint 2010, and select the slide in which you want to insert the Flash movie. Click menu File -> Options. This will show up the PowerPoint Options window.

step3

On the left panel of PowerPoint Options dialog, click Customize Ribbon. Select Developer check box on the right panel. Then click OK.