>Fred,
>
>>I don't know. Now I'm running into a problem as to how you programmatically *put* files into this zipped folder. I can put files into it just fine through Explorer with drag & drop, but I can't copy files into it, either from a program or from a Windows cmd window. Any ideas?
>
>Wouldn't you just refer to the directory like usual, without the .zip extension, of course?

Nope. From the XP cmd window, you get "The system cannot find the path specified". From a program, you just get an error.