It is throwing me an error
Visual Studio Extension Installer
This extension is not installable on any currently installed products.
How to Install it in Web Developer 2010 Express
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Sign up to join this communityIt is throwing me an error
Visual Studio Extension Installer
This extension is not installable on any currently installed products.
How to Install it in Web Developer 2010 Express
You cannot install extensions on Express, only the full version of visual stuido (with a few exceptions).
There is more detail here on stack overflow