DNS A and Pointer records

[Brycspain]

I'm trying to script some DNS Atype and PTRtype data entries. I've thoroughly studied the MSDN Library createInstanceFromPropertydata method and queried DNS for pointer and A records for precise examples and every time I run this script, I recieve a Generic Failure error on the first instance of errResult on line 15. I've run this script in cscript too with no better results.

I'm using domain admin credentials. Am I just approaching this wrong?

Any help would be greatly appreciated.

strDNSServer = "dnsserver.mydomain.com"
strPTRContainer = "32.1.179.in-addr.arpa"
strAContainer = "mydomain.com"
strPTROwner = "176.32.1.179.in-addr.arpa"
strPTRDomainname = "server" & "." & strAContainer
intRecordClass = 1
intTTL = 600 
strIPAddress = "179.1.32.176"

Set objWMIService = GetObject("winmgmts:" _
    & "{impersonationLevel=impersonate}!\\" & strDNSServer & _
        "\root\MicrosoftDNS")

Set objItem = objWMIService.Get("MicrosoftDNS_Atype")
errResult = objItem.CreateInstanceFrompropertydata _
     (strDNSServer, strAContainer, strPTRDomainname, intRecordClass, intTTL, strIPAddress)


Set objItem1 = objWMIService.Get("MicrosoftDNS_PTRType")
errResult1 = objItem1.CreateInstanceFromPropertyData _
    (strDNSServer, strPTRContainer, strPTROwner, intRecordClass, intTTL, strPTRDomainname)