When you want to run multiple product serial numbers on the same network, you need to use a text editor to create a combined license file. The file can include feature codes for different releases of the same Autodesk product or for different Autodesk products.
Here is an example of a combined license file for AutoCAD 2012 and AutoCAD 2013. The first three lines are common to both of the original license files, and the INCREMENT block from the AutoCAD 2013 file was copied into the AutoCAD 2012 file:
