All 64-bit operating systems come with a "compatibility" mode used for running older 32-bit software. This allows these 32-bit programs to operate successfully on your advanced operating system and computer processor. The process of running one of these 32-bit programs on a 64-bit machine isn't all that different from running them on a 32-bit machine. There are a few stipulations, however, concerning which programs will work and which won't.
Install your 32-bit program on your 64-bit computer (if you haven't already). Put the program's installation CD or DVD in your computer's disc drive. When the installer program automatically pops up on your monitor, click "Install." This will successfully install the program.
Locate the shortcut icon that loads your 32-bit program. Typically, an icon will be put on your desktop during the initial installation process of the program. If no such icon exists, however, you'll be able to find one by clicking on "Start" and then "All Programs."
Click on the icon to open the program. The 32-bit program will launch in "compatibility mode," allowing it to work on your 64-bit operating system and computer.