title: WCF service settings problem. I added .svc handler in IIS but it keeps disappearing
body: <p>my web service was working, then suddenly it stopped.  After debugging I realized that there might be a problem in the config, and for some reason the .svc mapping was gone in IIS (Handler Mappings).</p>
  
  <p>I added the .svc mapping, and it is now updating my web.config and adding a node to the web.config (my previous web.config's didn't have this node and it was working just fine).</p>
  
  <p>Ok, so I then upload my original web.config, now going back to IIS it shows that the .svc mapping is deleted again.</p>
  
  <p>Has anyone else experienced this strange behavior?</p>