How to configure your communications software

    Add the following entries to 'suffix mapping' preferences:

       suffix   type    creator    name        transfer  as...

        .gz     Gzip     Gzip     gziped           binary
        .tgz    Gzip     Gzip     tar.gz           binary
        .Z      ZIVU     Gzip     compressed       binary
        .zip    pZIP     Gzip     pkziped          binary
        
    Or use the suffix mapping included with MacGzip

It can use the same as above or Internet Config

Add strings (using ResEdit or similar) to resources 'STR# 335' and 'STR# 330'

Example:
    For gzip files:    1GzipGzip.gz

(Read ZTerm documentation for more information)

They use Internet Config

The "Guess" transfer type in XferIt is used to automatically set the transfer type depending on the extension of the file being transferred. The guess mode is useful particularly for receiving of directory trees. The default mappings are listed here:

Text:      .txt, .shar, .ps, .c, .p, .h, .cp, .conf, .abs, .ray
Binary:    .z, .tar, .rle, .tiff, .o, .gif, .pbm, .jpeg, .ras, .raw
MacBinary: .bin, .sit, .pit, .sea, .cpt
BinHex:    .hqx

These mappings are located in 'STR#' resources 128-131 in the XferIt application. You can add additional mappings simply by adding additional strings to the four resources.

Add

	.Z      Raw     'Gzip'  'ZIVU'  "Unix Compress File"
	.gz     Raw     'Gzip'  'Gzip'  "Unix Gzip File"
	.taz    Raw     'Gzip'  'ZIVU'  "Unix Tar.Z Archive"
	.tgz    Raw     'Gzip'  'Gzip'  "Unix GTar Archive"
	.z      Raw     'Gzip'  'Gzip'  "Unix Old Gzip File"

You may want to use "AFPFM" to create your afpfile from your Internet Config settings.

In "options:general preferences...:Helpers" set:

	application/x-compress     MacGzip     -     Z,taz   (Type ZIVU)
	application/x-gzip         MacGzip     -     gz,tgz  (Type Gzip)

Note: There is a problem with x-gzip in all versions of Netscape for the Macintosh (at least, all versions I have tested, up to 3.01).
Most HTTP servers consider 'x-gzip' an encoding, rather than a mime-type; this is because Unix clients can decode it internally easily by using unix pipes. In Windows and Mac, by now gzip decoding is not handled; so you get an alert saying

"Warning: unrecognized encoding: 'x-gzip'"

The problem (bug?) is that even if you download the file to your local disk (by dragging it to your desktop, for instance); netscape sets the type to the resulting of stripping the '.gz' extension instead of the one defined in the "Helpers" dialog.
This confuses MacGzip; a workaround, if you have to do this often, is to set MacGzip preferences to "misc:default function:decompress".
(You can use also hold the shift key while dragging to MacGzip to force decoding)

(You can use Marc Boon's ICTypeChanger to fix the type)

Note: This problem is solved in Communicator 4.x

	  For .gz:

		  Name:      Gnu ZIP Archive
		  Extension: .gz
		  MIME Type: application/x-gzip
		  Binary Data
		  Type:      Gzip
		  Creator:   Gzip

	  For .tgz:

		  Name:      Gnu ZIP Tape Archive
		  Extension: .tgz
		  MIME Type: application/x-gzip
		  Binary Data
		  Type:      Gzip
		  Creator:   Gzip

	  For .Z:

		  Name:      Unix Compress Archive
		  Extension: .Z
		  MIME Type: application/x-compress
		  Binary Data
		  Type:      ZIVU
		  Creator:   Gzip

	  For .taz:

		  Name:      Unix Compress Tape Archive
		  Extension: .taz
		  MIME Type: application/x-compress
		  Binary Data
		  Type:      ZIVU
		  Creator:   Gzip