Quote Originally Posted by cateyed View Post
I discovered that my "SSDP Discovery Service" was disabled, and hence was stopping the Canon service (...) changed the SSDP Discovery Service to Manual, restarted the Canon Camera service, and all was well. CameraWindow started straight away.
I own A610 and was experiencing the same problem with two Windows configurations. last time the CameraWindow stopped popping up after month or two of successfull working with my A610.

after digging around for solution, cateye's advice was the one which i need, so thank you! my A610 is connected again