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DOS 3.3 Launcher v2.2 File: DOS33Launcher.shk (length: 40,710 bytes) by John MacLean, v2.2 1996 now maintained by Andrew Roughan Requirements 128k Enhanced Apple //e, //c, IIc+, or IIgs 5.25" drive (to read 5.25" diskettes) ProDOS 3.5" disk drive, RAM disk, Zip disk, hard disk, ... An appropriate program launcher (e.g. ProSel on 8-bit II's; Finder on the IIgs) UnShrink DOS33Launcher.shk using 8-bit ShrinkIt or GS-ShrinkIt. (Text docs file is included.) DOS 3.3 Launcher is a utility which permits running many DOS 3.3 programs from ProDOS-formatted 3.5" diskette, RAM disk, hard disk, or other large media. It offers two major options: 1- You can save some DOS 3.3 programs to ProDOS disk (including 3.5" disk or hard disk). These must be single-file programs that do not access the disk once they are loaded into memory. DOS 3.3 Launcher's Copier is used to set launch options. 2- Using the DOS 3.3 Launcher Copier, you can save an entire DOS 3.3 disk as a disk image to a ProDOS 3.5" diskette, hard disk, etc.. According to 'Launcher's docs: >> Any disk that uses a standard RWTS (Read/Write Track/Sector) routine can be copied in this manner. This includes not only DOS 3.3 disks, but also many old games which use a standard RWTS, but are not actually DOS 3.3. They can then be launched by DOS 3.3 Launcher, which "boots" the large file directly from your hard disk. << To run a program on a ProDOS-8, you start DOS 3.3 Launcher from a program selector such as ProSel-8 which supports the ProDOS 8 startup protocol-- i.e. it can make applications automatically open a data file. (The DOS 3.3 Launcher docs tell how to setup a ProSel entry for a program.) Running a program from the IIgs System Finder is much easier. >> If you have properly installed DOS 3.3 Launcher, your DOS 3.3 programs should appear with DOS 3.3 icons when viewed through the Finder. To launch them, you simply double click on them, which launches them via ProDOS 8. << DOS 3.3 Launcher enjoys a few important advantages vis-a-vis special 3.5" disk versions of DOS 3.3: First, it is easy to set up the contents of a DOS 3.3 disk prior to converting it to disk image form-- you can use any of the popular disk management utilities such as Copy II Plus. Moving DOS 3.3 files onto an AmDOS or OzDOS disk with the crude FID-type copiers available is a hassle. Second, DOS 3.3 Launcher turns out to create and use standard 143,360-byte ProDOS order (.po) disk images except that 'Launcher requires the filetype to be User#1. (It may accept User#2-4, too; not sure.) So, you should be able to download any .dsk disk image on your PC, use an emulator to transfer the contents to a .po disk image, and transfer the .po file via NULL modem to your Apple II. Here you just need to adjust the filetype for use under DOS 3.3 Launcher. Or you can convert 5.25" .sdk (shrinked disk) files to .po disk image form and transfer these via NULL modem. Third, DOS 3.3 Launcher disk image files can reside on hard disk. R/