You can combine a license file for different releases of the same Autodesk product or for different Autodesk products, and run all products from one license server.
Here is an example of the contents of a combined license file for AutoCAD 2008 and AutoCAD 2009:
SERVER XXHP0528 0019bbd68993USE_SERVER VENDOR adskflex port=2080 INCREMENT 57600ACD_2009_0F adskflex 1.000 permanent 5 \ VENDOR_STRING=commercial:permanent BORROW=4320 SUPERSEDE \ DUP_GROUP=UH ISSUED=09-Jan-2008 SN=123-12345678 SIGN="1393 \ E368 816E D417 C1CD 7DBD 7B90 1354 D6F0 48FE EBB8 9C84 C3AF \ 7D79 BEE1 0181 0655 76FF 996C B707 14B5 D4DE A3FE 0B2D 2D36 \ 057C A579 7866 26BF 44E2" SIGN2="1280 943B 53A7 9B93 E00B D967 \ D821 BD37 BE6D B78A F074 B223 88AA 242C DD0A 1292 D56F 4108 \ 62CD FA35 E365 0736 A011 7833 8B35 7BFF DAD8 34A8 452F 2EB4" INCREMENT 54600ACD_2008_0F adskflex 1.000 permanent 3 \ VENDOR_STRING=commercial:permanent BORROW=4320 SUPERSEDE \ DUP_GROUP=UH ISSUED=09-Jan-2008 SN=123-12345678 SIGN="1E6E \ 4B61 5712 4766 92A0 6782 9EF4 3F47 56A1 1F38 6DE8 C0C7 90AC \ 7289 152E 0EA2 CC0D 3F10 577A 0489 CEB6 10D5 FBCC B552 0C9D \ 5966 91A6 59F0 2788 FACE" SIGN2="1DDF 3B9D 3392 71D5 AB08 7E05 \ 8497 111E 092F 0E54 8DC2 2BED 17C2 2CC1 981B 0EC2 BC15 8F00 \ C79A ABFD 2136 BABA 2EDF E941 EA53 32C6 597F F805 5A8A 599A"
