[SWFKit]

You can copy the text onto the clipboard, but it's a little hard to paste the text into a PowerPoint/Word doc automatically.

SWFKit pro supports drag and drop, you can let the users drag the text into the PowerPoint/Word doc.

Application.dragdrop.enable = true;
Application.dragdrop.onDragGetData = function ()
{
    return "some text";
}