From Xojo Documentation
Indicates the type of movie the MoviePlayer will play.
PlayerType can take on the following values:
|2||Windows Media player|
On Windows, the preferred player is the Windows Media Player, but if WMP cannot play the movie, the QuickTime player will try to be used instead. On macOS, PlayerType is ignored, as AVFoundation is used to play movies. If desired, set PlayerType to 2 to prevent the QuickTime player from being used on Windows. This is also ignored on Linux, where MoviePlayer uses GStreamer by default (requires version 010+) and uses Xine if GStreamer is not available.