Executable of "Open with" dialog on Windows

How can I open the "Open with" dialog in Windows from command line and other programs? Something like openwith.exe myfile or explorer.exe --openwith-dialog myfile

Answer

The "Open with" dialog can be opened from the command line as follows :

Rundll32 Shell32.dll,OpenAs_RunDLL any-file-name.ext

Note that the file-name is not checked for existence before the execution of the dialog, so if the file doesn't exist the "not found" error message will only arrive afterward.