error -604 by open registry key in Windows 7

[wilburwu]

Hi everyone,

I've tried to read an entry in registry on a Windows 7. The program was written on a Windows XP with LabVIEW 2010. 

It works fine on the other windows XPs but not on the Windows 7.

It always returns an error -604 , and tell me it can't find any keys when I run it on the computer.

Do I need to change the user setting in Windows 7 to do the job?

Wilbur

PS: I have the administrative privileges on the computer and using regedit I've no problem with the registry.

[Christian Mergl]

Hi,

This Thread is discussing the same error with registry keys and gives some hints to access rights which could cause the problem.

Christian

[wilburwu]

Thanks for your reply!

One difference between my program and the one in the thread your posted is that I just read the registry but not trying to write or delete.

 But still it sends me another error -603 and nothing back. I've also changed the access right for all the user on the laptop.

[wilburwu]

I've try another way to read the registry:

I can read all the keys now. But in the list there is no "ProductId" which is seen in Regedit and needed by me.

That's why it always returns error "-603" and tells me that the Key "ProductId" doesn't exist.

Is there a way in which I can list all the keys there?

[Christian Mergl]

So when you manually open the registry (start>regedit) then there is no ProductId under the CurrentVersion?

Christian

[wilburwu]

Actually there IS ProductId on every windows computer. 

But LabVIEW cannot find it.

Your may also try this on your own computer and see how it works.

[Dippi]

HI wilburwu,

perhaps this helps.

Best regards

Dippi

[wilburwu]

Hi,

Thanks for your advice! I've tried that but it doesn't help.

The problem is I do have any -603 error but the -604 error. That is to say one specified key cannot be found in LabVIEW, though it existes in the registry and can be found using regedit!!

Best Regards,

Wilbur

[Christian Mergl]

Well, it works at my computer without problems. So I'm still wondering about if there is a problem with the access rights.

Christian

[wilburwu]

I've tried the software on a windows XP with LabVIEW runtime, and it works fine.

The other computer, however, runs windows 7 with the same LabVIEW runtime (2010).

Still on the windows 7 computer it does work on the key "ProductId".