Hello,
For assistance retrieving prior registration information, please consult our "Lost Unlock Code" section of our policies for resources to assist you:
http://www.nc-software.com/policies.aspx
If you placed your order prior to September 12, 2005 please try our Registration Recall Center at
http://www.nc-software.com/KeyRecall.aspx
If you placed your order AFTER September 12, 2005, you can login to our online store at
http://secure.nc-software.com/myaccount.aspx to click on invoices of prior orders which contain your registration codes.
If you ordered APDL prior to June 1, 2005 or purchased from Sporty's Pilot Shop, or you are unable to use the resources listed above for assistance, you'll need to purchase our $15 registration rekey service from the URL below and we'll manually find your orders and regenerate your license information. Proof of purchase, credit card statements, etc. may be required to complete this process.
http://secure.nc-software.com/rekey