Visual Studio Extensions for Windows Library for JavaScript in VS 2013 won't update correctly.

After click update it will continue to show last version and can't update anymore but show repair and uninstall instead.
after some research to make it work we need tool call "msiinv" to uninstall old version (for me is 2 version 1.x and 1 version for 2.x)

here is ref
http://stackoverflow.com/questions/22960240/after-installing-visual-studio-extensions-for-windows-library-for-javascript-u

go to download msiinv from
http://blogs.msdn.com/b/astebner/archive/2005/07/01/using-msiinv-to-gather-information-about-what-is-installed-on-a-computer.aspx

uninstall zip package in c:\msiinv and run command
msiinv.exe -p > out.txt

now look in out.txt for 
"Visual Studio Extensions for Windows Library for JavaScript"

uninstall any old version by 
msiexec /x {product code}
ex.
msiexec /x {D5FEB7A1-5D0F-4CDC-8290-F52DFB53AF23}

hope this help.