Access to Stdregprov

I am running into what I believe is a security problem trying to access the registry via WMI using stdregprov. I am trying to access the HKEY_CURRENT_USER\Control Panel\International key, specifically the value sDecimal. The following is the javascript snippet I am using:

var ls_regKey = "Control Panel\\International";

var HKCU = 0x80000001;

refRegistry = GetObject("winMgmts:{impersonationLevel=impersonate}!root\\fit1cd666\default:StdRegProv");

// determine if we can access the registry
var numAccessMask = 1;
var boolAllowed;
if ( refRegistry.CheckAccess(HKCU, ls_regKey, numAccessMask, boolAllowed) == 0 ) {
Svc.Trace(TRACE_DEBUG, TRACE_SOURCE + " registry access PERMITTED!");
} else {
Svc.Trace(TRACE_DEBUG, TRACE_SOURCE + " registry access DENIED or some other error");
}

refMethod = refRegistry.Methods_.Item("GetStringValue");
refInParam = refMethod.InParameters.SpawnInstance_();
refInParam.hDefKey = HKCU;
refInParam.sSubKeyName = ls_regKey;
refInParam.sValueName = "sDecimal";
refOutParam = refRegistry.ExecMethod_(refMethod.Name, refInParam);
decimalSep = refOutParam.sValue;

The script errors out on the CheckAccess stmt. Here is what I see in the wbemcore.log:

(Tue Feb 14 00:46:58 2006.-1308329406) : CALL
ConnectionLogin::NTLMLogin
wszNetworkResource = \\.\root\default
pPreferredLocale = (null)
lFlags = 0x0
(Tue Feb 14 00:46:58 2006.-1308329406) : DCOM connection from FIT1CD666
\Administrator at authentiction level Privacy, AuthnSvc = 10, AuthzSvc
= 0, Capabilities = 0
(Tue Feb 14 00:46:58 2006.-1308329406) : CALL CWbemNamespace::GetObject
BSTR ObjectPath = StdRegProv
long lFlags = 0
IWbemClassObject ** pObj = 0x228F938
(Tue Feb 14 00:46:58 2006.-1308329390) : CALL
CWbemNamespace::ExecMethod
BSTR ObjectPath = StdRegProv
BSTR MethodName = CheckAccess
long lFlags = 0
IWbemClassObject * pIn = 0x1E39508
(Tue Feb 14 00:46:58 2006.-1308329390) : CALL
CWbemNamespace::ExecMethodAsync
BSTR ObjectPath = StdRegProv
BSTR MethodName = CheckAccess
long lFlags = 0
IWbemClassObject * pIn = 0x1E39508
(Tue Feb 14 00:46:58 2006.-1308329375) : CALL CWbemNamespace::GetObject
BSTR ObjectPath = StdRegProv
long lFlags = 0
IWbemClassObject ** pObj = 0x104F938
(Tue Feb 14 00:46:58 2006.-1308329375) : Error 80041003 occured
executing request for CheckAccess
(Tue Feb 14 00:46:58 2006.-1308329375) : CAsyncReq_ExecMethodAsync,
Path= StdRegProv, Method=CheckAccess, args=
instance of __PARAMETERS
{
hDefKey = 2147483649;
sSubKeyName = "Control Panel\\International";
uRequired = 1;
};
in namespace root\default using flags 0x0

Obviously, 80041003 is WBEM_E_ACCESS_DENIED - Current user does not have permission to perform the action.

I have looked at the permissions on the Control Panel\International key and it looks like the user has the appropriate permissions, Full Control & Read. Are there other permissions that are required Am I missing something

Thanks in advance for your assistance!