[Tutor] file, select ?

[bill slaybaugh]

How does the IDLE environment call "FILE - OPEN"?
I need to provide the same facility under W95/98, but I don't
see how the IDLE script does this.
I am a beginner, but I have written some workable tools to 
assist in semi-automating the use of InstallShield5.5 .
I am trying to provide a python/Tkinter based interface for 
someone else to do some of my tasks with IS5.5 when I'm not
around.
I've already struggled with Listbox trying to sortof do the
same thing.  Which is select a group of files and copy them
off the network to my local drive.
TIA