Authorize.Net Networking Change

Hello,

I just got an email from Authnet that says I need to change the transaction URL to their new Akamai cloud service.

The new Akamai transaction URLs that are available now are:

https://api2.authorize.net/xml/v1/request.api
https://api2.authorize.net/soap/v1/Service.asmx
https://secure2.authorize.net/gateway/transact.dll

I am wondering where I do this? I see on line 47 of catalog/controller/payment/authorizenet_aim.php there is a URL "https://secure.authorize.net/gateway/transact.dll". Do I replace this? Do I put in all three there or just the one with the .dll extension?

Thank you for any direction you can provide.

just change the link to the NEW Site URL, but not the 'File+Extension',
it's just beeing the Execution-Link, of this, and it's the same, as it was before.

Multiple ways. Compare it with Car's, some use Diesel, some use Gasoline,
some even Electric Power, to make the engine execute!
And OC defined/uses the DLL-Doorway, to get in. Seemengly!
Ernie
bigmax.ch/os/

Thanks so much.