If you need to regenerate a license (if you lose a license transfer file or transfer code, for example), you can recreate it by exporting the license again from the source computer. (This is one reason you obtain the license from the target computer when you initially set up a license transfer between two computers.) The Portable License utility can identify the target computer where you exported the original license, so you can only re-export the license to that same computer.
The Export License dialog box displays the Autodesk product name and license name, and lists the computer name and identification code of all computers in the computer list.
The identification code displayed here must match the code on the target computer exactly.