I think he means he wants to have an app - a non blitz3d app like a vb one or something, which displays spinning cubes or other 3d effects as an intro to the start of the app. In that case calling the b3d executable from within the app may be an easy way of doing it. Rendering as a video is not too difficult - save the screen buffer (front or back) each frame as a bitmap and use something like virtualdub (free) to create an avi and then windows xp moviemaker to encode it as a wmv file which your app should be able to play..although blitz3d can only play avi and mpeg formats.