Note: We’re currently migrating FAQ topics from our old setup, so please bear with us!
All Microsoft support for Windows XP ended in April 2014.
While King Stairs Software no longer supports Windows XP, there is usually no reason why our products won’t install and work on Windows XP; we just cannot support it.
The name derives from the King Stairs, a staircase down to the Thames riverside (clearly visible on satellite maps).
Trivia: When the company was formed, we actually had to get permission from the Crown (some department of the Royal Household) to use that name because it contained the reserved word “King”.
Our current upgrade policy is discussed in detail on the Upgrade Policy page.