You're going to have problems here because of the way Vista (all editions) enforces the commandment "Thou shall not write to '\program files'."
So when this occurs, Vista attempts to "virutalize" the operation off in some hidden directory - with the net result being you can never read what you wrote at a later date.
When Vista prompts you for "Elevation" it is asking for an "Administrators" password to continue the requested operation. Whatever you do, you will continue to have problems if you installed CAESAR II in '\program files'. The best thing you can do is:
a) Uninstall CAESAR II. Then delete all remnants of the software from below '\program files'.
b) Re-install CAESAR II to some other location, outside of '\program files'.
Note, not only is Vista Home not tested, we didn't test Version 5.00 under Vista either. Version 5.10 was the first CAESAR II version tested under Vista.
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Regards,
Richard Ay - Consultant