Add network videos and pictures to Windows Live Movie Maker
If you have a small hard drive, you probably don’t store all of your pictures and videos on it, but instead put it on a network drive. The only problem is, well, Windows Live Movie Maker doesn’t allow that. And I’m sure you don’t want to copy it over to your computer. So, thanks to the WithinWindows blog, I will show you how to add networked video to Windows Live Movie Maker. 
Error you get for adding networked videos or pictures to Movie Maker
Let’s get started. First, make sure the folder that holds your videos is shared. If it’s not shared, or if your not sure it’s shared, right-click the folder, then click “Properties” 
Next, click the “Sharing” tab, then click “Share…” 
Next, click the drop down arrow, click “Everyone,” then click “Add” 
Next, click the “Read” drop down button, click “Read/Write,” then click “Share.” 
Hopefully you will get this screen. Click “Done.” 
Now it’s time for the fun part: Getting those videos into Movie Maker. What your about to do is going to be really hard, but I’ll try to make it as easy as possible.
First, make sure Movie Maker is closed. Then click the “Start” button, search for “regedit.exe”, then push the “Enter” button on your keyboard. If User Account Control(UAC) pops up, click “OK.” 
Next, browse to “HKEY_CURRENT_USER\Software\Microsoft\Windows Live\Movie Maker” by clicking the arrows on the side of the window. 
Next, click “Movie Maker” on the side of the window if you haven’t already, then right-click any blank spot, and choose “New” > “DWORD Value (your computer type) Value”. If you don’t know what “bit” your computer is, just choose “32”. “64 bit” if you have more than 4GB of RAM.
Type in “AllowNetworkFiles” then push “Enter” on the keyboard. 
Next, double click the entry you just made, then replace “0” with “1”. Click “OK.” 
Close the registry editor, then open up Windows Live Movie Maker and try to add a network file. It should work now. 
Have fun making movies!
Source: Within Windows
i dont prefer windows movie maker
@hmad
August 25, 2009 at 1:38 am
@hmad
Let me guess, you only prefer iMovie?
mcepat
August 25, 2009 at 5:11 pm
@hmad
You know what, you don’t have to comment and say that. This post is for people who DO use Windows Live Movie Maker. If you don’t prefer it, you don’t prefer it. But you don’t have to let the world know. It makes you look like a troll.
nysics
August 29, 2009 at 5:02 pm
Great tip. Saved me tons of time. Thanks!
But a little correction: Even under 64bit OS, it seems you need to specify DWORD, not QWORD. Using Win7/64/Ultimate and the latest Windows Live Movie Maker as of Dec 29, 2009, WLMM will silently refuse booting if you set QWord:1. Using DWord:1, on the other hand, works like a charm!
tunae
December 30, 2009 at 6:40 pm
Thanks. I’ll update the post.
nysics
December 31, 2009 at 6:42 pm
Works great… thanks!
PapaJohn
February 4, 2010 at 6:08 pm