You can also use the SetupBuilder IDE to create the serial numbers and subscription keys. But if you have to automatically generate subscription keys, then I would use the sPSDK.

BTW, the sPSDK is running on quite a few Windows servers 365/24/7 to generate thousands of keys per hour. Of course, no manual interaction is required at all (and would be impossible in this case). Customer orders, the sPSDK generates the serial number and subscription keys, server sends information to customer.

Does this help?

Friedrich