Hello Seb,
We have not yet implemented a full command line with AxCrypt 2. There is still a command line, but it is a little limited and it’s really only intended for use by the Windows Explorer integration shell extension.
You can found the command-line arguments for the AxCrypt 1.x here: http://www.axantum.com/AxCrypt/LegacyCmdLine.html.
https://bitbucket.org/axantum/axcrypt-net/src/
Filename: Axantum.AxCrypt.Core/CommandLine.cs
still, you are facing any issue/query, please provide more information about the issue and write a mail to support@axcrypt.net.