title: Using OleDB requires what?
body: <p>I am confused about the requirements for using OleDB.</p>
  
  <p>Within an application I read XLS files with OleDB. After that I publish my project with ClickOnce (Visual Stuido 2012, .NET 4.0). But will the application work on a Windows System with ONLY .NET 4.0 installed? Or do others have to install MS Office because of the internal usage of OleDB?</p>