ZIPping empty directories

[Ks68]

While evaluating the PACL 4.01 tools, I tried to zip a directory tree that contained numerous empty subdirectories. With two exceptions (test\test8\test6 and test\test9\test6), PACOMP did not place any empty directories into the ZIP file.

I created the attached file testpa.zip with the following command:
pacomp.exe -a -r -P testpa.zip test\*

For comparison, I created the attached file testwz.zip with WinZip using the command:
wzzip -aPr testwz.zip test\*