So I think I have it.

• First, each and every file in the directory has to be removed (i.e, $zipA->removeMember($NewMemberName)).
• After they are all removed, the directory entry seems to disappear from the Zip file.
• After all removal is complete, the Zip file has to be updated (i.e., $Stat = $zipA->overwrite()).

In my case, there are two Zip files, some folders are removed from one and some from the other. In any event, the scheme outlined above seems to work.

A code snippet:

:
:
$csv     = Text::CSV->new();
$TodoCnt = -1;

PROC_TODO:
while(my $TODOrec = <TODO>) { # . . . . . . . . . . . . . . . . . . . 
+. . . . .
  $TodoCnt++;
  if ($TodoCnt == 0) {next PROC_TODO;}
  if ($TODOrec =~ /^FNX,/i) {last PROC_TODO;}
  $csv->parse($TODOrec);
  @Fields = $csv->fields();

  DELETE_EACH_FILE:
  foreach my $FileNameToDelete (@InDirFiles) { # . . . . . . . . . . .
+ . . . . .
    $NewMemberName = $Fields[FLD_LECROY] . "/" . $FileNameToDelete;
    print "DBG: Name- \"$NewMemberName\"\n";
    if (defined($zipB->memberNamed($NewMemberName))) {
        print "DBG: Member exists (ZipB) (\"$NewMemberName\")\n";
        }
      else {
        die "**Fatal error, can't find in zip (ZipB; \"".$NewMemberNam
+e."\")";
        }
    if (defined($zipA->memberNamed($NewMemberName))) {
        print "DBG: Member exists (ZipA) (\"$NewMemberName\")\n";
        }
      else {
        die "**Fatal error, can't find in zip (ZipA; \"".$NewMemberNam
+e."\")";
        }

    printf(LOGALL "%.4d  Folder: \"%s\"\n", $TodoCnt, $Fields[FLD_LECR
+OY]);
    printf(LOGALL "%.4s          \"%s\"\n", "    ",   $Fields[FLD_BY_T
+DS]);
    printf(LOGALL "%.4s          \"%s\"\n", "    ",   $FileNameToDelet
+e);
    if ($Fields[FLD_MOVE] =~ /^\s*$/) {
        print LOGALL "    skip folder from ZIP_A_New\n";
        print LOGALL "  delete folder from ZIP_B_Append\n";
        $DelBcnt++;
        if (!defined($zipB->removeMember($NewMemberName))) {
          die "**Fatal error, can't remove (ZipB; \"".$NewMemberName."
+\")";
          }
        }
      elsif ($Fields[FLD_MOVE] =~ /^move to B$/i) {
        print LOGALL "  delete folder from ZIP_A_New\n";
        print LOGALL "    SKIP folder from ZIP_B_Append\n";
        $DelAcnt++;
        if (!defined($zipA->removeMember($NewMemberName))) {
          die "**Fatal error, can't remove (ZipA; \"".$NewMemberName."
+\")";
          }
        }
      else {
        die "**Fatal error, Unknown \"move\" (\"".$Fields[FLD_MOVE]."\
+")";
        }
    } # . . . . . . . . . . . . . . . . . . . . . . . . . . end DELETE
+_EACH_FILE

  } # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  end
+ PROC_TODO

if ($Stat = $zipA->overwrite() != AZ_OK) {
  printf("\n**Error, bad Zip A overwrite() (code: %d)\n\n", $Stat);
  }
if ($Stat = $zipB->overwrite() != AZ_OK) {
  printf("\n**Error, bad Zip B overwrite() (code: %d)\n\n", $Stat);
  }
:
:
[download]

Sorry for the screwy code, but I have been trying different approaches and, someday, I'll clean it up.

I just hope it helps someone else...

---

---

Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!

Titles consisting of a single word are discouraged, and in most cases are disallowed outright.

Read Where should I post X? if you're not absolutely sure you're posting in the right place.

Please read these before you post! —

• How do I compose an effective node title?
• How do I post a question effectively?
• Markup in the Monastery

Posts may use any of the Perl Monks Approved HTML tags:

a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr

You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)

	For:		Use:
	&		&
	<		&lt;
	>		&gt;
	[		&#91;
	]		&#93;

Link using PerlMonks shortcuts! What shortcuts can I use for linking?

See Writeup Formatting Tips and other pages linked from there for more info.