title: Configuring IIS 7.5 to enable server side includes (SSI) for the '.html' extension
body: <p>I want to configure <strong>Server Side Includes (SSI)</strong> in IIS 7.5. By default, the file extension that indicates that a file should be processed as an SSI file is <strong>.shtml</strong>. However, I want to configure IIS so that files with the <strong><em>.html</em></strong> extension are processed as SSI files. This is to enable me to change the footer for multiple <strong>.html</strong> pages by changing a single file named <strong>footer.html</strong>.</p>
  
  <p>Is this possible, and if so, are there are any caveats?</p>
  
  <p>I would also be receptive to suggestions for <strong>alternative</strong> approaches to changing the footer on multiple HTML pages by changing just a single file. </p>