One-Write Plus accounting software can be used on a Windows 7 or 8 computer by first setting up an XP partition. This can be done using the XP partition built into Windows or use VMware.
This link takes you to an article where Microsoft describes their Windows XP partition. They caution that they are no longer supporting use of Windows XP.
Here's a link to the VMware website where Player Pro is for sold for a reasonable price. This does a good job of running OWP on the Windows 8 computer in my office, although there have been some issues with printing.
Take a minute so other readers may benefit, enter a short comment into our public forum. Have you run One-Write Plus with Windows 7 or 8? Did you use and XP partition? Pease share!