Registration key in 64 bits

In the system of 32 bits 
HKEY_LOCAL_MACHINE\SOFTWARE\Autodesk\AutoCAD 
The versions of AutoCAD 2007 to 2010 are registered below as the list: 
AUTOCAD 2007 = R17.0 
AUTOCAD 2008 = R17.1 
AUTOCAD 2009 = R17.2A 
AUTOCAD 2010 = R18.0 
 
Does anybody can me to say if it exists differences in the system of 64 bits?

On 64-bit systems, those keys will be in HKLM\Software\Wow6432Node\Autodesk\AutoCAD.

author=owenwengerd link=topic=1282.msg6882#msg6882 date=1274557726 wrote:
On 64-bit systems, those keys will be in HKLM\Software\Wow6432Node\Autodesk\AutoCAD.

Thank you Owen, 
For the that me and I understood the values they don't only change the main key. 
Is this?

Yes, only the location is different.

author=owenwengerd link=topic=1282.msg6882#msg6882 date=1274557726 wrote:
On 64-bit systems, those keys will be in HKLM\Software\Wow6432Node\Autodesk\AutoCAD.

Hello Owen, 
The system of an user's 64-bit with Windows 7 display the registration screen below. 
Equal to the 32-bit system. 
Are you known this it is also common?

Those keys are for the 64 bit versions of AutoCAD on a 64 bit system. The ones in Wow6432Node are for 32 bit versions of AutoCAD on a 64 bit system.

As I do to know the installed version it is 32 or 64 bit in a 64 bit system. 
I create the installation program with InnoSetup.