At the AC, re: Zipping Windows.
Thank you for that nudge down memory lane. It brings back memories of using Zip to create a backup copy of my current system, move the Zip file off drive, & only then run the installer for some bit of suspect program.
If/when the system went to hell, I rebooted to DOS, unZipped the backup copy to overwrite the current files, & rebooted to a working computer.
Now I've got a computer a gazillion times faster, with an obscene by then standards amount of RAM, & enough HD space to store the entire Library Of Congress a dozen times over, but there's no way in hell such classic backup recovery methods can do the job, more's the pity.
*Hands you a pint & clinks rims*
Here's to "progress", eh? =-J