The attempt fails due to the space in the pathname for the script. Various attempts at single-, double-quotes, doubled double-quotes, and using the DOS ^ escape character, have failed.
Processing -File 'C:\Users\John\Documents\My Programs\myScript.ps1 0330g000000rXr89' failed because the file does not have a '.ps1' extension. Specify a valid Windows PowerShell script file name, and then try again.
which clearly isn’t correct. My original question arose working around this problem. BTW, the original works when there is not a space in the file pathname.