What is WLMP and how to convert WLMP to MP4

What is WLMP? WLMP short for Windows Live Movie Maker Project, is Movie project file created by Windows Live Movie Maker, WLMP files are used to create personal videos for sharing with friends and family. They can be exported to .WMV files, published to YouTube, and burned to DVDs.
Windows Live Movie Maker is a movie creation, editing and sharing application provided within the Windows Live Essentials suite of software utilities.
Windows Live Movie Maker allows users to build movies from photos, videos and animations, providing built-in sounds and effects like typical movie-making software.

For the WLMP file, most of users can not understand how to transfer them to other format, like bellow:
"Trying to convert WLMP to mp4 or any video file, help?
Okay, so before you bombard me with links, I've tried every link that I've looked up. No matter which converter program I've downloaded, I've always gotten the same pop-up saying "This file is not the right format," or something along those lines. I need one that REALLY works. I have Windows Live Movie Maker and I have Windows 7. I recently made my first video on the program and it only lets me save as .wlmp format, and I need it to at least be an mp4 or .wmv ....Can someone help me please??? "
In fact, to transfer WLMP to mov or wmv is easy. You can learn this from below:
1. Open Windows Live Movie Maker.
2. Click on dropdown menu (top left) and select Open project.
3. Browse for you .WLMP project file and Open.
4. Click on dropdown menu (top left) and select one of the Save movie options (not project). Your project will now start to render as a movie which may take a significant length of time.
You should now have a video file in the common .WMV format. You can now use a convertor program or a suitable video editing program to change your .WMV file into one of the formats you need.
But how to convert wlmp to mp4? To do this you will transfer the WLMP to WMV file as method above first, then you should get an extra video covnerter to convert the WMV file to MP4. Doremisoft video converter is designed to convert all kinds of video format to other format, so with this software you can easily convert wlmp to mp4.
This video converter also will help you convert mp4 to webm, convert mkv to nexus 10. If you are looking for the xperia video app, or EA50EH AVCHD converter, you get to the right place. Just enjoy.