hello Sri

It is really hard.but you can import flash in this way
1Open PowerPoint 2000.

2Choose View > Toolbars > Control Toolbox. This will open the ActiveX Control
toolbar.

3At the bottom of the Control Toolbox there is an "other controls" icon.

4Select this icon to open the list of ActiveX controls installed on your
machine.

5Choose "Shockwave Flash Object" from the list of controls:
Choosing Shockwave Flash Object from the list of controls will change the
cursor to a crosshair. Move the cursor over the slide. Click and drag to
define the area the Flash movie will play in. The Flash movie can take up as
much of the screen as you wish.

6After creating the Flash "window", right-click on the window. Choose
"Properties" from the pop-up to open the Flash object control properties.

7Choose "..." to the right of 'Custom' . This opens the Page Properties
dialog for the Flash control.
In the Page Properties dialog enter the path or URL to the SWF you wish to
use. If the SWF is in the same directory as the PowerPoint file just enter
the SWF name. The SWF can also be at any valid URL network address.