Examining several apps serves for upgrade of Oracle client installation, I ran across an odd situation.
Server is Windows 2008, 64bit. It has one installation of Oracle client 11.2, and the keys and values in HKLM\SOFTWARE\ORACLE look very normal.
What is raising my curiosity is an entry in HKLM\SOFTWARE\Wow6432Node\ORACLE. At that point, there are no subkeys, just a single string value for NLS_DATE_FORMAT (set at DD-MON-RR, for what it's worth).
I'm thinking this makes no sense, serves no purpose, and probably should be removed. But in the interest of 'you never know what you don't know', thought I'd ask if anyone might have any ideas on this. Remember this is an apps server, and only has the one 64-bit client installed, so I can see no reason for there to even be an ORACLE key under HKLM\SOFTWARE\Wow6432Node\