Showing file in Windows Explorer
As per https://support.microsoft.com/en-us/kb/152457, which states "switches can be combined", what about:
explorer /n,/select,c:\path\to\file.ext/n should force a new window.
I dont know if one exists, but if you create utility which would be implement such solution(C++) it would work as you expected:
void OpenFileInExplorer(LPCTSTR filename){ ITEMIDLIST *pidl = ILCreateFromPath(filename); if(pidl) { SHOpenFolderAndSelectItems(pidl,0,0,0); ILFree(pidl); }}