hm_extapi.lib
      
      This Windows library file contains the implementation of the functions
          Open_HM_ExtAPI() and Close_HM_ExtAPI(). This file is
        located under the <altair_home>/hm/lib/<platform> directory.
    
    libhm_extapi.so
      
      This Linux library file contains the implementation of the
        functions Open_HM_ExtAPI() and Close_HM_ExtAPI(). This
        file is located under the <altair_home>/hm/bin/<platform>
        directory.
      These functions encapsulate the process of verifying the version of the installation,
        loading and initializing the required libraries, and proper cleanup and unloading of the
        libraries. The functions within this library do not depend on any existing 
HyperWorks installation libraries so even without a 
HyperWorks installation, the user application would still be able to
        run and return an error after a failed attempt to open the 
HyperMesh session. Therefore, it is necessary to have these files
        available in the application directory at run time.
Note: These libraries are built with the
          following compilers: Windows: Visual Studio 2019 (16.3.7) Linux: GCC version 8.3.1 (Red Hat 7.4) (GCC)