title: WinForms in Excel (2002) and add-ons
body: <p>Good morning,</p>
  
  <p>I am about to start writing an Excel add-in for Excel 2002.  The add-in needs to call a form.  Obviously, I can write the form within VBA.</p>
  
  <p>My question is -- is there an easy/good way of calling a .NET (I am using 3.5) from Excel, and have the form be able to write stuff back to Excel the same way a native Excel 2002 form would?</p>