Altiris 7.1 Custom Inventory to report the Registry Value

I have created a Data Class for fetching a registry value for Windows 7 and Server class machines for pulling registry.

Registry value from windows 7 machine: HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU

Data to be pulled out will be a DWORD Value.

I have created a VB Script also which works manually and provides the result, however when I check the Inventory on that machine through Altiris console it shows Missing data.

I would like to know which Inventory do I need to run to get the data posted on Console, Is it Hardware or software.