To register a plug-in, please use the provided demo file that comes packaged with the plug-in. The demo file is located in the "Extras" folder, usually labeled PCXX_Demo. Open the demo file and in the "License ID" field, replace the demo license with the license that was sent to you when you purchased the plug-in.
Alternatively, you can use the registration script step to register the plug-in:
PCXX_Register("licensing.productivecomputing.com"; "80"; "/PCIReg/pcireg.php"; "Your license ID here")
If you have any issues, please contact firstname.lastname@example.org