IWMIExtension::GetWMIOBject method will not be supported on .Net server versions of the LDAP ADSI provider. (329207)

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The IWMIExtension is no longer considered a supported method for accessing the Win32_ComputerSystem object via the LDAP provider. The afore mentioned versions of the windows operating systems do provide access to this object via the LDAP provider by binding to a computer object and using the GetWMIObject method, however, using the LDAP provider to access the WMI object is not recommended and will not be supported.

The supported method for accessing the Win32_ComputerSystem object for a given computer system is to build the WMI provider string and create the object directly. This can be done in two lines of VBS code. The Following VBS code snippet illustrates how one can bind to a computer object in the AD and then build the WMI Win32_ComputerSystem path string:

dim oComp
'
' Get the computer object
set oComp = GetObject("LDAP://cn=myComputer,ou=domain controllers,dc=home,dc=com")
'
' Dimension the WMI object
'
dim oWMI
'
' Build the WMI path from the CN of the computer object as follows:
'
wmiPath = "WINMGMTS:{impersonationLevel=impersonate}!//"&oComp.Get("cn")&"/root/cimv2:Win32_ComputerSystem.Name=" &chr(34)& oComp.Get("cn") & chr(34)
WScript.Echo wmiPath
set oWMI= GetObject( wmiPath )
WScript.echo oWMI.UserName
Wscript.echo "Done"
				

In future releases of the LDAP provider the Win32_ComputerSystem object will not be available. The programmer will be responsible for building the Win32_ComputerSystem string and create the WMI object.

The MSDN documentation will is being updated to reflect this change.