Unable to open or perform action on Windows Live

I recently upgraded my system from Win XP SP3 to Windows 7 64 bit version. I lost a few applications and software in the process of upgrading and movie maker was one of them.
I downloaded Windows live essential and installed it on my Windows 7 machine. When I tried to open, it comes up with an error message that it is missing a .dll file.
The program can't start because the UXCore.dll is missing from your computer. Try reinstalling the program to fix this problem.
I have tried reinstalling it quite a few times but it keeps coming back with the same message. Any suggestions?
