AppleShare 4.0.1: "Cannot find the file: IWEm"

There have been multiple reports of people that are having trouble installing AppleShare 4.0.1. The error they get during installation is "Cannot find the file: IWEm."
This is a file used by the AppleShare Print Server. You need to get the original AppleShare install disk and copy the file called "IWEm" from the AppleShare Print Server folder into the System Folder on the server's hard drive. The 4.0.1 upgrade will run correctly once this file is in place.
Published Date: Feb 19, 2012