The linear version of B2000++ is free software and can be downloaded from the SMR web site either in binary form or as compressed tar files containing the source code.
Binary packages are available for Fedora 24 Linux, Fedora 23 Linux, and for CentOS (RHEL) 7. For download and installation instructions, refer to the B2000++ Installation Manual and Release Notes.
The source code of these packages is available through the following links:
MEMCOM-7.7.0.tar.gz (MemCom source code).
pymemcom-1.5.0.tar.gz (Python-MemCom source code).
mcbrowser-1.0.3.tar.gz (MemCom Browser source code).
B2000++-4.0.6.tar.gz (B2000++ source code).
The B2000++ Examples Collection can be downloaded here (compressed tar file).