THANK YOU!!Service Pack compatibility mode fixed the issue for me as well. I was trying to put up a vm W7 workstation to verify calling works with a certain patch in my lab and I could not open CIPC until I read this forum and your answer and you sav...

THANK YOU and THANK YOU OllaI wish I would have found you sooner - the check credentials for my default zone as per your answer and all my problems were solved. Two days of banging my head against the wall.THANK YOUZeecil