Your problem isn't the length of the song, it's the length of your video itself. Shorten the video before attempting to add music.
You need to download the video project from Windows Movie Maker onto your computer. From there, you will be able to upload the video file onto YouTube.
In Windows Movie Maker, the project has to be Published/Finished/Saved before it is converted to a format that can be uploaded to YouTube.Publish/Finish the movie project in Windows Movie Maker. Name it and choose a destination to save it on your computer. Once Publishing/Finishing/Saving has been achieved, locate the file and upload it to YouTube.
YouTube does not accept Windows Movie Maker Project files (MSWMM). You have to Publish or Finish your video in Windows Movie Maker first. This process changes the project file into a Standard viewing format that can easily be uploaded to YouTube.Just remember... Publish or Finish the video before burning, uploading or emailing.
Have you Published or Finished the movie in Windows Movie Maker? You have to publish or finish the project before it can be uploaded anywhere. This exporting process converts the video/audio properties of a Windows Movie Maker project file into Standard Viewing Format. The output source format is .wmv, which is a compatible format for uploading to YouTube.
The duration of Facing Windows is 1.7 hours.
The duration of Windows - film - is 1.6 hours.
Windows Movie Maker files have to be published or finished in the program first before they can be uploaded onto YouTube. The publishing/finishing process exports the project file properties into .wmv format, which is a Standard viewing format. So, Publish or Finish your video in Windows Movie Maker first. Then upload the .wmv video to YouTube.
The duration of The Windows of Heaven - film - is 3000.0 seconds.
The duration of The House with Laughing Windows is 1.83 hours.
You need to have a YouTube Download/Conversion Tool before you can download anything from the site. Google: YouTube Downloader. Choose one and install it. Read the instructions on how to download from the site.Once you have the media downloaded, as long as it is in a format compatible with Windows Movie Maker, all you have to do is import it into the program for use/editing.
You can't access YouTube directly from Windows Live, but you can upload videos to the site from the program.
Once you have Published your project on Windows Movie Maker, upload it to a site such as YouTube (you will need to register for a free account first). Once it is uploaded, you will be able to watch the video on the web.