[jackie_w]

Originally Posted by kovidgoyal

3. Yes the point of using CreateProcessW is that it uses the unicode windows API which passes all data between the system and the application in utf-16 encoding, regardless of the codepage that windows itself uses

Just when I thought I had this working ... Are you saying I should be using ???.CreateProcessW rather than win32process.CreateProcess as used in open_with.py?

Originally Posted by kovidgoyal

1. They are documented here: https://msdn.microsoft.com/en-us/lib...(v=vs.85).aspx You should use DEFAULT_ERROR_MODE. You dont need DETACHED_PROCESS

Thanks for that.