Binary Registry Values come back empty. I'm assuming it's a code issue within the service.
Sample:
const HKEY_LOCAL_MACHINE = &H80000002
strComputer = "."
Set StdOut = WScript.StdOut
Set oReg=GetObject("winmgmts:{impersonationLevel=impersonate}!\\" &_
strComputer & "\root\default:StdRegProv")
strKeyPath = "SOFTWARE\Microsoft\Windows NT\CurrentVersion"
strValueName = "LicenseInfo"
oReg.GetBinaryValue HKEY_LOCAL_MACHINE,strKeyPath,_
strValueName,strValue
For i = lBound(strValue) to uBound(strValue)
StdOut.WriteLine strValue(i)
Next