Windows Vista and Windows 7 - Create Registry Keys

[Andy Flowers]

I have a program that stores data in the Registry - HKEY_LOCAL_MACHINE/SOFTWARE/....... on an XP machine. However when my client upgraded his machine to Windows 7 we noticed that the data is no longer saved.

Has anyone encountered this problem or know what might be the problem? Any way to resolve this?

Andy Flowers

[Ivan Iraola]

LOCAL_MACHINE needs Admin rights, Win7 might be preventing it.

[David Kenny]

Andy,

Ivan is right.  Windows 7 requires admin rights to write to the HKEY_LOCAL by default.

You can get around it several ways:
They can run your app using 'Run As' - Not very practical.
Your setup can change the rights on the keys they need to write to.  - Would work, but your app is already installed.
They can use regedit (logged in as Administrator) and change the rights. - Might be the best solution in this case.
You can modify your program to use the HKEY_CURRENT_USER/SOFTWARE/... - Won't be shared by all users.

You will have to decide what is best in your situation.

I did give you the short version.... feel free to ask for clarification if you need it.

David

[Roger Garstang]

If 64bit you may also need to look in the HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node branch...depends on what you mean by not saving though since it should route your program to there for you and be transparent from your app's point of view.

[Andy Flowers]

Thanks for your suggestions.