• NC Software is proud to announce the release of APDL version 9.3 now on the Apple App Store. Click here to review what's new and download the latest version. New users enjoy the first 90 DAYS FREE.

Unlock/upgrade key won't work


New member
Nov 19, 2001
After re-installing the program, the unlock code I have from when I purchased the program doesn't work. When I enter it it tells me that it's an invalid code. So my version is still unregistered, and since I have much more than 100 entries that worries me a little........ HELP.