.app.zip files?

G5s can only run Mac OS 9 in Classic mode. As such, I would not attempt to open .app.zip files from any program running in Classic. http://www.maczipit.com/ or http://www.blackdiamond.co.za/bdfreex.html Nutcase Gzip may be necessary to open the file in Mac OS X. Once you pull out a .APP from the archive, that will be a Mac OS X native application. The only question then is, is the application also Tiger compatible on PowerPC. Not all are. The only reason to use a Mac OS 9 archiving program is for an application that is Mac OS 9 native.

Very few Mac OS 9 applications are named .app. In fact in Mac OS 9 they would be treated as folders, and the actual application would reside inside the folder if you booted it from Mac OS 9. Because what they did was combine both a 9 and X version in one folder, and Mac OS X would know to load the X version. Mind you this was true until Rosetta was removed in 10.6 and made an optional install, and 10.7 no longer was available. If you told us which application was zipped as a Mac OS 9 application, we might be able to find a better archived version of it.

a brody wrote:

Very few Mac OS 9 applications are named .app. In fact in Mac OS 9 they would be treated as folders, and the actual application would reside inside the folder if you booted it from Mac OS 9.

One common program of that type was AppleWorks 6. In the context of OS 9, the .app suffix indicated that it was of the Application Program Package type.

Although it was in fact a folder containing both the OS 9 and the OS X versions of the program, it was a specialized folder which displayed using a regular program icon, and behaved like a regular OS 9 program when double-clicked.

A user could view it as a folder and see the contents of the folder, but to do so the user had to Control-click the program's icon and then select Show Package Contents from the contextual menu that appeared. To use the program, though, it had to be reset to closed-package status.

Doing a little research version 1, the one on floppy likely would not work even if you could transfer it, as it was for the original System 7, and probably not a FAT binary for PowerPC & 68k compatility. Version 2 I found was capable of playing on a Performa 5400, which is PowerPC, and the CD was often put inside a jewelcase that the drive could read. If you have it in that jewelcase, remove the jewelcase, and then if the disc hasna't aged you might be able to read it. It may though only be usable through Mac OS 8, as so many of those programs were those days, and not readable by Classic. Do you have any evidence it is playable booting into 9 on an older Mac? iMac g5 unfortunately only can use Classic.

You double-click it and then launch the decompressed application.

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Do you have Stuffit Expander somewhere on your drive? If so, try dropping the file onto Stuffit Expander's icon.

Where did you get it from?