It would be interesting using SignalR in Windows Forms application for notify progress bar style.
Any sample using SignalR in Windows Forms or Addin VS 2010 for notify long running process ?
I have seen several samples for Web, not for WinForms.
Progress bar for long running process with steps using asp.net, C#, SignalR
http://archive.msdn.microsoft.com/mag201203CuttingEdge
http://growingtech.blogspot.com.es/2012/10/progress-bar-for-long-running-process.html