I wish to call upon the MATLAB COM Automation Server Interface to connect an instance of MATLAB (running under MacOS High Sierra) with an instance of STK (virtually running under Windows 10 on the same physical machine, via Parallels Desktop 13). The ProgID is 'STK11.application'. STK: http://help.agi.com/stk/#training/StartMatlab.htm?Highlight=integrating stk with matlab Matlab: https://www.mathworks.com/help/matl...tomation server interface&s_tid=doc_srchtitle My concern is that COM functions are available on Microsoft Windows® systems only.