[omniORB] Problem with reading registry in Windows 7

[Jens Kristian Villadsen]

Thanks Luke, Super!
Changing all the sample.reg parameters from 
[HKEY_LOCAL_MACHINE\SOFTWARE\omniORB] to 
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\omniORB]
solved the issue. Everything works now - thanks!

Luke Deller skrev:
> Hi Jens,
>
> One thing to be aware of on Windows x64 editions is that when a 32-bit application requests to open "HKEY_LOCAL_MACHINE\SOFTWARE" it will actually be given "HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node".
>
> Similarly if you request to launch C:\WINDOWS\System32\reg.exe from a 32-bit application (such as the cygwin shell) you'll actually be running C:\WINDOWS\SysWOW64\reg.exe which is a 32-bit application subject to the mapping I mentioned in the previous paragraph.
>
> So if your application is 64-bit, make sure you are initialising the registry settings using the 64-bit version of reg.exe, and likewise if your application is 32-bit then make sure you are running the 32-bit version of reg.exe
>
> Regarding your observation that omniORB is looking at HKEY_CLASSES_ROOT, this does sound rather unlikely to me.  You could confirm whether it is true using the Sysinternals "Process Monitor" tool available here:
>
> http://technet.microsoft.com/en-us/sysinternals/bb896645.aspx
>
> Regards,
> Luke.
>
> -----Original Message-----
> From: omniorb-list-bounces at omniorb-support.com [mailto:omniorb-list-bounces at omniorb-support.com] On Behalf Of Jens Kristian Villadsen
> Sent: Tuesday, 27 October 2009 8:30 PM
> To: omniorb-list at omniorb-support.com
> Subject: Re: [omniORB] Problem with reading registry in Windows 7
>
> I must admit, I am not all that familiar with the Windows Registry, but
> as you point out, the behaviour has changed for Windows 2003. As I am
> running Windows 7 x64 I cannot see how this applies to this case.
> Anyhow, from my perspective, I would like to know the solution to the
> problem,. and like to hear if anyone else has had this issue - and how
> they solved it.
>
>
> Schäfer-Hutter skrev:
>   
>> Hello!
>>
>> The behaviour for HKEY_CLASSES_ROOT changed with Windows 2003 Server.
>> See http://technet.microsoft.com/en-us/library/cc739822%28WS.10%29.aspx
>>
>> However, i don't see the connection to the SOFTWARE subkey. The above
>> applies to the subkey SOFTWARE/CLASSES only, IMHO.
>>
>> Best regards,
>> Peter
>>
>> 2009/10/26 Jens Kristian Villadsen <jenskristianvilladsen at gmail.com
>> <mailto:jenskristianvilladsen at gmail.com>>
>>
>>     I've tried debugging it a bit and I found the following:
>>
>>     Instead of accessing the \LOCAL_MACHINE\SOFTWARE\omniORB it
>>     accessed the \HKEY_CLASSES_ROOT\SOFTWARE always. But what seems to
>>     be the nature of this? Iv'e tried the "Run as Administrator"-kinda
>>     trick, but so far nothing has helped me.
>>
>>     Duncan Grisby skrev:
>>
>>         On Thu, 2009-10-22 at 13:52 +0200, Jens Kristian Villadsen wrote:
>>
>>
>>
>>             I'm using omniORB 4.1.4 on a Windows 7 x64 machine and it
>>             works great besides reading the registry. The values in
>>             the registry is set with the sample.reg - meaning that the
>>             settings are located in \HKEY_LOCAL_MACHINE\SOFTWARE\omniORB.
>>
>>             However, in the orboptionsreg.cc in
>>             src\lib\omniorb\orbcore\ the #define NEW_REGKEY is
>>             assigned to "SOFTWARE\\omniORB" - thereby missing the
>>             \HKEY_LOCAL_MACHINE string. Should'nt this be corrected in
>>             a newer edition of omniORB?
>>
>>
>>
>>         If you look at the calls to RegOpenKeyEx, you'll see that it
>>         opens the
>>         key within HKEY_LOCAL_MACHINE.
>>
>>         What exactly is the problem you are seeing?
>>
>>         Cheers,
>>
>>         Duncan.
>>
>>
>>
>>
>>
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>>
>>
>>     
>
>
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