We have it installed on an aging pc. I can access the menu from another pc and attempt to install it but none of the disks I have seem to work. We need to do something the backups won't do us any good if the pc dies and we can't install the program on another pc. Can anyone here help me out and point me in the right direction please. It actually shows version 5.15i on the menu.

5.x is not very "clever" you can simply zip it down and unzip it on another computer. No need to install it "properly".

The problem might rather be that it won't run on modern computers, so you will need to run it on a x86 (32 bit) Operating system.

Thanks so much for the help. What do you mean by zip it down and back up to another pc. I have been playing with it on an xp machine. I can access the menu thru the DE16M shortcut but not the entire program to perform entries etc. I copied the dease file from the old pc.

ZIp it down in file explorer (WIndows)

Right click on it and choose Send To/Zipped Folder or something like that (XP is a long time ago for me).

Same results I can access the menu of the program. I can pull reports and access the data, but not the program itself. I can't perform any of the day to day functions.