Friend has a Canon ixus 950IS which worked correctly for years with XP. Recently built a new computer running Win7 Pro x64 Plug the camera in & it refuses to start CameraWindow (CW refuses to start manually as well) Downloaded all the latest & greatest from Canon but still no go. I have a laptop running Win7 Pro x64 and have a Powershot SX100IS installed. Plug his IXUS in and I'm presented with 3 options . . . I select the CameraWindow option & it starts just as it should. Doubt it's significant but his system has a BluRay reader where mine doesn't. On another site I found this: > > 8. If still no connection, try going to Start/Run and type in services.msc here you are looking for 4 services to be running. Check under status of each service and make sure it reads that each of these services are started. > > Canon Camera Access Library 8 (if Canon software loaded) > SSDP discovery service > Universal Plug and Play Device Host > Windows Image Acquisition #1 isn't listed on either system. 2, 3 and 4 have been checked but doesn't make any difference. He's a cpl hours drive away so this morning we spent an hour via TeamViewer uninstalling/reinstalling but still no luck. It seems to be related to the system it's plugged into but we have no idea where to look now. Any suggestions?.