wonky behaviour vs2010 get HKLM value even with Run As Administrator c# .NET 4

Question

For an application that will run as a windows service
I store settings values in a HKLM\Software... registry key.

I've a library that accesses my registry values.

I've a simple test console application that I use to verify that the code works.

To debug via my test console application, I must run vs2010 as administrator.

Everything works:

Console.WriteLine(WindowsRegistry.getTaleoOrgCode("test"));

invokes

Microsoft.Win32.RegistryKey hklmLocalMachineRoot =
Microsoft.Win32.Registry.LocalMachine;
Microsoft.Win32.RegistryKey hklmLocalMachineHbsiTaleoClient =
hklmLocalMachineRoot.OpenSubKey(@"SOFTWARE\Taleo\" + clientName.Trim(), false);
 // read only
if (hklmLocalMachineHbsiTaleoClient != null)

via debug, it's clear that hklmLocalMachineHbsiTaleoClient is not null.

I have an application that uses the above library subroutine.

I start that application in vs2010 also as administrator.

via debug, it's clear that hklmLocalMachineHbsiTaleoClient is null.

Before debugging, I ensure that the failing application
has the latest version of my registry routines library.

The vs2010 Pro version is running under Windows 7.

Help, please and thank you.

Answer 1

Hans is right in his comment that the demon is registry virtualization.

Please see my follow up queestion:

https://stackoverflow.com/questions/4980211/how-do-i-search-all-non-virtual-and-virtual-registries-in-vista-win7-et-cetera

Thank you.