Why would an ISP want to deploy 3rd party software on Mac OS X / 10 instead of just letting their customers use the native PPPoE

Brand Management
When ever 3rd party applications are launched the customer is “forced” to see the ISPs branding on the connect screen of, MacPoET, for example
With, MacPoET, for example by default upon install you can force the browser to launch after connect and force the user to go to your web site again reinforcing brand management

Reduce Support Costs
Since OS X is the only Mac OS to have native PPPoE a client needs to be rolled out anyway, so why trouble shoot two clients instead of just one? If the provider supports 1 application and Mac OS X native the provider must train it’s call center to support both, if the Provider only supports 1 application training costs are less, as well as training time, as well as support time since only one “client” needs to be supported.

I need help with Mac OS X Native PPPoE
See our Mac OS X Native XP PPPoE help page