i am sorry, i attached the error log but it did not get it. i will include the file here.
12/6/2012 12:27:17 PM - Microsoft VSIX Installer
12/6/2012 12:27:17 PM - -------------------------------------------
12/6/2012 12:27:17 PM - Initializing Install...
12/6/2012 12:27:17 PM - Extension Details...
12/6/2012 12:27:17 PM - Identifier : NShader.51a01e9d-eb56-4ee2-a9fd-8212bf6bf2b1
12/6/2012 12:27:17 PM - Name : NShader
12/6/2012 12:27:17 PM - Author : Alexandre Mutel
12/6/2012 12:27:17 PM - Version : 1.1
12/6/2012 12:27:17 PM - Description : NShader is an extension to Visual Studio 2008/2010 that provides syntax highlighting for various shader languages including HLSL - GLSL - CG
12/6/2012 12:27:17 PM - Locale : en-US
12/6/2012 12:27:17 PM - MoreInfoURL : http://nshader.codeplex.com/
12/6/2012 12:27:17 PM - InstalledByMSI : False
12/6/2012 12:27:17 PM - SupportedFrameworkVersionRange : [4.0]
12/6/2012 12:27:17 PM -
12/6/2012 12:27:17 PM - Supported Products :
12/6/2012 12:27:17 PM - Microsoft.VisualStudio.Ultimate
12/6/2012 12:27:17 PM - Version : [10.0]
12/6/2012 12:27:17 PM - Microsoft.VisualStudio.Premium
12/6/2012 12:27:17 PM - Version : [10.0]
12/6/2012 12:27:17 PM - Microsoft.VisualStudio.Pro
12/6/2012 12:27:17 PM - Version : [10.0]
12/6/2012 12:27:17 PM -
12/6/2012 12:27:17 PM - References :
12/6/2012 12:27:17 PM -
12/6/2012 12:27:17 PM - Searching for applicable products...
12/6/2012 12:27:17 PM - Found installed product - Microsoft Visual C# Express 2010
12/6/2012 12:27:17 PM - Found installed product - Microsoft Visual C++ Express 2010
12/6/2012 12:27:17 PM - Found installed product - Microsoft Visual Studio 2010 Express for Windows Phone
12/6/2012 12:27:17 PM - Found installed product - Microsoft Visual Studio Express 2012 for Windows 8
12/6/2012 12:27:17 PM - Found installed product - Microsoft Visual Studio Express 2012 for Windows Phone
12/6/2012 12:27:17 PM - Found installed product - Microsoft Visual Studio Express 2012 for Windows Desktop
12/6/2012 12:27:17 PM - Found installed product - Global Location
12/6/2012 12:27:17 PM - VSIXInstaller.NoApplicableSKUsException: This extension is not installable on any currently installed products.
at VSIXInstaller.App.InitializeInstall()
at System.Threading.Tasks.Task.InnerInvoke()
at System.Threading.Tasks.Task.Execute()