If I create a zip file and then put the zip file into a rar file, DOpus complains when I try opening the file. Error message I get is: "An error occurred reading archive xxx.zip. The system cannot find the path specified . (3)"
Steps:
Right click on an existing file (any file). Select the WinRar context menu - "Add to archive". (WinRar needs to be installed)
Select the zip format and click OK.
Open Winrar, select the zip file you created and click Add button.
Select the rar format and click OK
Now use Dopus to open the rar file (this shows the zip file it contains)
Now open the zip file contained inside the rar file and you get an error message
Because the Rar and Zip code in Opus are completely different, and it's not something we've taken the time to explicitly support (because putting zip files in a rar file seems a strange thing to do, and extracting the inner archive before entering it seems reasonable for the rare times that you might need to work with such a setup created by someone else).