title: PowerPoint Add-in working on Windows 7 Enterprise edition but not on Windows 7 Pro
body: <p>I have created a PowerPoint add-in using C# VSTO and using msi installer for the deployment.</p>
  
  <p>The Problem is that on every system at my end(all Windows 7 Enterprise edition), the plug-in is working fine, but on users' machines(Windows 7 Pro) either the ribbon is not visible or the events are not working.</p>
  
  <p>My concern is, am I missing something which I need to take care of during the development?
  Thanks</p>