C#

private static RegistryKey _GetRegistryBaseKey(BaseKey BaseKey)
{
    RegistryKey key = null; ;

    switch (BaseKey)
    {
        case BaseKey.HKEY_CLASSES_ROOT:
            key = Registry.ClassesRoot;
            break;

        case BaseKey.HKEY_CURRENT_CONFIG:
            key = Registry.CurrentConfig;
            break;

        case BaseKey.HKEY_CURRENT_USER:
            key = Registry.CurrentUser;
            break;

        case BaseKey.HKEY_DYN_DATA:
            key = Registry.DynData;
            break;

        case BaseKey.HKEY_LOCAL_MACHINE:
            key = Registry.LocalMachine;
            break;

        case BaseKey.HKEY_PERFORMANCE_DATA:
            key = Registry.PerformanceData;
            break;
    }

    return key;
}

SledgeHammer01 wrote:

Seems like a security / permission problem to me.

string platformTarget = "unknown";
#if x86
    platformTarget = "x86";
#elif x64
    platformTarget = "x64";
#elif AnyCPU
    platformTarget = "AnyCPU";
#endif
    lblPlatformTarget = platformTarget;