You guys aren't reading the documentation !
Prior to Version 5.10, the "\system" directory is located below the program directory. However, since most people install to "C:\Program Files", so that means you end up with this:
"c:\program files\coade\caesar ii 5.xx\system".
The purpose of "\system" is to hold files that "you" may want to alter, so you need full access rights to this directory. But this violates the current "Microsoft / Security / IT" thinking. So for Version 5.20 and later, we moved "\system" to the Microsoft recommended location - which unfortunately is different between XP and Vista.
As of Version 5.20, "\system" is located below %allusersprofile%. On XP this will be:
"C:\Documents and Settings\All Users\Application Data\COADE, Inc\CAESAR II\5.20"
and on Vista this will be:
C:\Program Data\COADE, Inc\CAESAR II\5.20.
Unfortunately, some XP setups "hide" the "\Application Data" directory. The only way to get to the "\system" directory in this case is to type in the location in the address bar of Windows Explorer (thank you Microsoft)."
This "relocation change" also affects the "\examples" directory as well as the valve/flange library file directories, and the "\backup" directory.
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Regards,
Richard Ay - Consultant