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in reply to Re^3: How to escape space in registry path? (reason)
in thread How to escape space in registry path?

The $^E says "The system could not find the environment option that was entered."
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Re^5: How to escape space in registry path? (reason)
by marto (Cardinal) on Nov 21, 2012 at 09:51 UTC

    A google search for the error message and the OS details returns some promising suggestions. Perhaps you should investigate if any of these resolve your issue.