On my computer with Windows XP I try to upgrade from FLIR Tools 1.0 to 1.1, but it does not work.

When trying to update from version 1.0 to 1.1 on Windows XP, you would see the following dialog box:

In this dialog box, you need to unselect "Protect my computer and data from unauthorized program activity" to continue with the update.

This problem has been fixed in 1.1.