Finding the location of vsixInstaller.exe programmatically
It should always be here: %vs100comntools%\..\..\IDE\ or through the registry: HKLM\SOFTWARE\Microsoft\VisualStudio\10.0\ under key InstallDir Thanks Pablo!
...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.