The following information was compiled based on Customer's questions about this topic.
The resources are created in the SMP by the CreateResource.aspx. The URL of this page on a SMP installation is http://localhost/Altiris/NS/Agent/CreateResource.aspx.
This page is an xml page, it accepts xml as input, either from xml= get parameter, or as post data. It returns an xml fragment as output.
This page is used by the Symantec Management Agent to create the resource in the NS representing the managed client machine.
If a resource already exists in the SMP with the specified guid or the specified resource keys then the existing resource will be updated.
Note: On (Apple) Mac clients, the 'uniqueid' resource key is based solely on 'mac address' since the other values are blank on mac computers. Therefore, if the 'macaddress' resource key must be excluded, the 'uniqueid' resource key must also be excluded.
Note: On (Apple) Mac clients, the 'macaddress' resource key is generated by the SMP agent. Run 'aex-helper info resource' to see resource keys generated by the Unix, Linux and Mac SMP agent and their corresponding values.