There are some 400 utilities that do zip and unzip on the 400 but I'm making the assumption that you are using the traditional PC zip and unzip utilities. Try this. Have your friend save the programs to a save file on the 400. FTP the save file to a PC in a binary format and then zip the save file. When you get the zip file, unzip the save file, create a save file on the 400, ftp the save file to the 400 in a binary format. You can now restore from the save file.
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This was first published in December 2002