title: Excel COM automation via interactive user stops working when user logs off
body: <p>I have developed a server app that uses Excel 2007 COM automation to convert some xls files. It is started as a service on a Windows Datacenter instance, running under its own user, and I had to change DCOM security settings ("launch as interactive user") to make it work.</p>
  
  <p>The problem is, when I log off (via RDP), it stops working. I log on, it works again.</p>
  
  <p>Has anyone had the same problem?</p>