If you want to deploy Windows Live products (Writer, MovieMaker, Messenger..)separetely it is not posible because from Microsoft can be dowloaded the package wich contains all products.
Windows live wlsetup-all.exe can be downloaded from here: http://download.live.com
If you try to use some tools to extract this exe as WinZIP, WinRAR, 7-zip it will be without success.
The solution will be to install the whole package by default. After that all these files you can find in:
C:\Program Files (x86)\Common Files\Windows Live\.cache
You just need to search in cache folder.
To make MovieMaker to work you need also to have PhotoLibrary installed. If you want to use Photo Library you should have and MS SQL 2005 Compact Edition.