My guess is this was the clue that it was not a KiX issue.
quote:
When running MS Copy from the cmd line I get prompted to overwrite, but I can overwrite or use the overwrite switch.

In the future, please do not hijaak threads with unrelated problems but rather start a new one.
_________________________
Give a man a fish and he will be back for more. Slap him with a fish and he will go away forever.