_winreg error on open key (64bit) - proper usage of _winreg.DisableReflectionKey

[Mark Hammond]

On 18/11/2009 6:29 AM, Randall Walls wrote:
> I don't believe so, but it seems like I'm in a catch 22, where I need to
> _winreg.OpenKey the key first before I can pass it to
> _winreg.DisableReflectionKey, but it doesn't exist, so I can't open it.
>
> I did find out that I can open the key using:
> hKey = _winreg.OpenKey(_winreg.HKEY_LOCAL_MACHINE, r"SOFTWARE\ODBC\ODBC.INI\
> DRSQL2000_mu0100\\", 0, _winreg.KEY_READ | _winreg.KEY_WOW64_64KEY)
>
> The 'trick' was adding _winreg.KEY_WOW64_64KEY, which apparently tells
> the system to look in the 64bit key area, and not under the Wow6432Node.
> That brings up problem #2, though... I can't seem to CREATE a key in the
> above path, and _winreg.CreateKey doesn't accept _winreg.KEY_WOW64_64KEY
> (in fact it doesn't accept any options other than key, sub_key).
> _winreg.CreateKey does work, it just puts the key in
> SOFTWARE\Wow6432Node\ODBC\ODBC.INI. So I'm in a quandry... I'd like to
> use one or the other, and not have to account for both.

It looks like _winreg needs to be enhanced to make the RegCreateKeyEx 
API function available.  It can be called via the win32api module of 
pywin32, or could also be called via ctypes.

HTH,

Mark