Thanks for the reply and for your time looking into this. I agree the DOpus help file is clear about "full" and "relative" paths. It creates Zips with paths exactly as I expected from its description. (BTW: the help file is well-organized, which is more than I can say of some help files-thank you).
DOpus does create useful ZIPs, since ones with "full paths" are all readable by anything I've tried; GOOD!
The only option missing from DOpus is the ability to control the ZIP file date -- perhaps a specialized option, but useful I would argue. You said you'd suggest for a future feature -- Thanks.
Since everything (including WinZip) will successfully read and modify Zips with full paths, its fortunate that the command-line options in DOpus will pass file names with "full" paths. Now I know how create a zip with full paths, and with zip-file-date set as desired by calling WinZip command-line using a command button (posted earlier).
PS: I think you misstated the situation "WinZip cannot modify archives that have full paths stored in them". WinZip cannot modify files [created by DOpus] that have relative paths in them; DOpus DOES create good/compatible Zips that have full paths.
Also note: "You want that option to be OFF, but you have it on right now"; at no time have I used the split option ON, as I explained to Jon.
Now I know how to get the Zips I need, both in DOpus and in WinZip, and more important, the techniques to get them to cooperate. I'm not fixated on WinZip, but had the impression it was a widely-used Zip utility and thus treated its responses as worth examining.
Again, to be clear about the main point of this thread, I really enjoy the extensive capabilities of DOpus, and am learning how to use more; just was bought up short by these quirks in getting the two programs to cooperate, since I couldn't get the file-date option only from DOpus.