What version do I have?
Try selecting the Windows Start button and then All Programs. If Ability is installed you will see a program group titled Ability Office 6 or Ability Office 5. The number gives you the major version installed. Alternatively, select Help/About (About is directly on the toolbar in version 6) in any Ability application. The first digit of the build version gives you the major version - e.g. if it says "6.0.11" you have Ability Office 6 installed.
The Ability program group on Windows 7, Vista and XP
In all these cases, version 6 is installed