(There's no video for Iomega Zip Install Disk v4.21 yet. Please contribute to MR and add a video now!)
The physical floppy disk is labeled "Version 4.21" but all the files on the disk say version 4.2.
To use the installer on the floppy disk, expand Zip-Tools-4-2.sit onto a Zip disk titled "Zip Tools 4.2" then run the installer from the floppy disk.
zipdriver4.2.hqx (46.65 KiB / 47.77 KB)
System 6.x - Mac OS 8 - 8.1 / BinHex'd, use Stuffit Expander
zip_install_4.2.image_.sit (322.28 KiB / 330.02 KB)
System 6.x - Mac OS 8 - 8.1. Contents are the same as Zip-Install-4-2-image.sit except for the Desktop file which was modified in 2012. / compressed w/ Stuffit
Zip-Install-4-2-image.sit (313.33 KiB / 320.85 KB)
Remastered from the original physical floppy disk. Disk Copy 4.2 image format / compressed w/ Stuffit
Iomega-Zip-Install-4-2.sea.bin (1.16 MiB / 1.21 MB)
Folder from Zip Tools Zip disk that installs Iomega Driver, Iomega Tools, Iomega Guest, Personal Backup, VirtualDisk Starter, DiskDup Pro Starter, EasyLabels Starter. Self-extracting archive encoded in MacBinary. / Binary encoded, use Stuffit Expander
Zip-Tools-4-2.sit (23.94 MiB / 25.1 MB)
Contents of Zip Tools zip disk. Expand into a Zip disk titled "Zip Tools 4.2" and make sure the "Use Custom Icon" folder flag is set on the disk. / compressed w/ Stuffit
Emulating this? It should run fine under: Basilisk II