PC Setup Version: 1.6.1 Read Me

PC Setup Version: 1.6.1 was released August 15, 1997. This software update requires US System 7.5.3 or later, and a 166 MHz PC Compatibility Card installed in a Power Macintosh 4400 or 7220.

Description:
This software, only for a 166 MHz PC Compatibility Card installed in a Power Macintosh 4400 or 7220, fixes a problem with formatting and writing to DOS floppy disks in PC mode. It also corrects a problem with a generic icon of the PC Setup control panel.
This version of PC Setup is only supported on the Power Macintosh 4400 or Power Macintosh 7220 with a 166 MHz PC Compatibility Card installed. It has not been qualified for use on other CPUs or PC/DOS Compatibility Cards and is not supported on this hardware.

This software consists of two Disk Copy NDIF (New Disk Image Format) compressed images, which requires Disk Copy 6.1 or later to use. Download this software to your hard drive and then double-click it to use it. Disk Copy is available in the Utilities folder.

Disk Copy 6.1 (or later) or Disk Image Mounter 2.1 (or later) from Apple are the recommended applications to access all disk images released by Apple and are the only supported applications to access NDIF disk images.

This article can help you locate the software update mentioned here:
"Where To Find Apple Software Updates" - Lists online services for free Apple software updates.
Published Date: Feb 20, 2012