Are you looking for simulation/emulation modules of MilCAN for CANbus analysers (such as CANoe/X-Analyser/CANanalyser), or MilCAN libraries/stacks to use in a system?
As far as I know there are no add-on modules for such analysers. Libraries/stacks are available from a few commercial companies and contractors.
Actually I'm looking for both of them, analysers and Libraries/stacks. So if there are some commercial companies that sell those Libraries, could you tell me please some of them, or any interesting link, as I was looking for them and I couldn't find it.
Most of people told me that the only way is I have to implement that libraries.
for Libraries I cannot answer, but for tools. The Vector CANalyzer and CANoe tools have an option J1939 with a similar message layout as MilCAN. For this option there exists a free adaptation for MilCAN.