I have a WCF service hosted in a Windows service.
This service the WCF have one metohd and in this method I have one important line :
Process Browser =
http://social.msdn.microsoft.com/forums/en-US/netfxbcl/thread/63a7d1ec-7077-489a-a250-f7422f04317b
" in order to get the service to actually show the UI, you'd have to set the service in Computer Management to allow it to interact with the desktop. In the services window in computer management, go to the properties of your service, and on the Log On tab, check "Allow service to interact with desktop" "