X+ is available for academic use under the license below. 

For a commercial license please contact Yissum or the developers

Notes for users.

Please install "Visual C++ Redistributable Packages for Visual Studio 2013" x86.exe.

To add a new models to X+ please see to following instructions on how to write a DLL

xplus_academic_license.pdf404 KB
xplus_and_usersmanual.zip1.77 MB
vcredist_x86.exe6.21 MB