Just an FYI.  I received this error on my desktop, yet had script working fine on other desktops.  My script was for a custom map button from code found here in Sage City.  I had upgraded my desktop from Windows 7 to Windows 10 but it still worked after that. It stopped working after I installed Microsoft Edge and Internet Explorer was removed and iexplore.exe was not longer available.  I ended switching to using chrome.exe anyway and all is fine now.  Could have just as easily used msedge.exe as well.  Hope this helps anyone else.  

Just an FYI.  I received this error on my desktop, yet had script working fine on other desktops.  My script was for a custom map button from code found here in Sage City.  I had upgraded my desktop from Windows 7 to Windows 10 but it still worked after that. It stopped working after I installed Microsoft Edge and Internet Explorer was removed and iexplore.exe was not longer available.  I ended switching to using chrome.exe anyway and all is fine now.  Could have just as easily used msedge.exe as well.  Hope this helps anyone else.