security exception accessing registry when the program runs as scheduled task

问题

the following small line throws a System.Security.SecurityException: Requested registry access is not allowed:

RegistryKey _key = HKLM.OpenSubKey("path\\to\\my settings", false);

Now.. what's the point some would ask? The point is that this runs ONLY when I am logged on. The exception is thrown if the program runs as scheduled task and nobody is logged on.

the user who runs that task is local administrator
the program does not run from a network share, it is located on the local disk
I even tried setting Code Access Security
the user has the rights to log on as a batch job

I have XP SP3 with all patches applied. The program is written in C# .Net 2.0 (tested 3.5 too)

Does anyone know whats the point here? Torsten

EDIT: see http://gist.github.com/638576

回答1:

Mhhhh...it seems related to Authorization problem too. Have you tried to use the API: OpenSubKey(...., RegistryKeyPermissionCheck) to see if something change? I guess it could be related to parent key and its authorization.

Try to see: http://msdn.microsoft.com/it-it/library/microsoft.win32.registrykeypermissioncheck.aspx (in your language). I hope it could help you...

回答2:

Can you adapt this

WindowsPrincipal principal = new WindowsPrincipal(WindowsIdentity.GetCurrent());
string isAdmin = principal.IsInRole(WindowsBuiltInRole.Administrator) ? "Yes" : "No";

to check that the process really is successfully impersonating when there's no current user?

回答3:

It seems that this is a problem of this specific computer. I tested it on another workstation and it works even without administrator privileges.

I assumed this - the program did run for years without any problems... Anyway, thanks to all!

来源：https://stackoverflow.com/questions/3987776/security-exception-accessing-registry-when-the-program-runs-as-scheduled-task

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security

exception