Thank you, Larz60+, for responding.
I do not understand why Windows OS cannot find the application when I run my python command:
proc = subprocess.Popen(r"C:\Windows\System32\appwiz.cpl")
If I open a "Command Prompt" window on my Windows 10 Professional system, by clicking the icon that runs:
Quote:"C:\WINDOWS\system32\cmd.exe"
... and I run the command line "appwiz.cpl":
Windows runs the command successfully, and
The command effectively opens a program window entitled: "Control Panel\All Control Panel Items\Programs and Features"
What do I need to do when I run subprocess so that the Windows OS can find the application
Quote:"C:\WINDOWS\system32\cmd.exe"
?
Thank you again for taking the time to reply and help me. Much appreciated.
Marc