WMI Security

Im running running the follwing code to connect to one of my domain
controllers and retrieve the SID for a user account. The works fine with the
domain administrator account but not for a normal user..

What permissions fo i need to set?

Ive tried adding the user im connecting with (strAuthUsername) to the WMI
root in the WMI management console and giving them full permissions.

Is their somewhere else i need to set permissions to allow remote
connections by non admin users?

RetrieveSID (strComputer, strUsername,
strComputerOrDomainname,strAuthUsername,strAuthPassword)

Dim objWMIService
Dim objAccount
Dim mySID

Dim objLocator
Dim objService

RetrieveSID = -1

On Error Resume Next

wbemImpersonationLevelImpersonate = 3
wbemAuthenticationLevelPktPrivacy = 6

Set objLocator = CreateObject("WbemScripting.SWbemLocator")
Set objService = objLocator.ConnectServer (strComputer, "root\cimv2",
strAuthUsername, strAuthPassword)

objService.Security_.ImpersonationLevel =
wbemImpersonationLevelImpersonate

objservices.Security_.AuthenticationLevel =
wbemAuthenticationLevelPktPrivacy
Set objAccount = objService.Get ("Win32_UserAccount.Name='" &
strUsername &"',Domain='" & strComputerOrDomainname & "'")
RetrieveSID = objAccount.SID

End If


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