The password for Paint Shop Pro 5 (psp5.exe) is:
"futurepsppromo"

Once entered, it will unpack all files to:
C:\Users\your_name\AppData\Local\Temp\PaintShopPro5

and following that, will attempt to run "setup.exe" from that location. Of course you can cancel this step and move the files to a place of your preference.

This is actually the contents of the full CD - approx 193 Mb.. So just install and enjoy.

If you're downloading this to get the copy of Paint Shop Pro, it's password protected and the site it redirects you to in order to get a registration code doesn't exist anymore. However, the Amapi 3D program can presumably be installed fine and the disc also includes an early version of Firebird (the DB) which is pretty cool.