Hi Frank,
To change the display text of a
CheckBox control, you can edit the
Display field from the control properties, as in the below image:

- CheckBox Control Properties.png (147.81 KiB) Viewed 7123 times
Regarding the error that you get "This package can only be run from a bootstrapper", I'm not able to replicate it on my end. Also, it should not be displayed. In order to further investigate this, can you please send me the .AIP(project file) to
support at advancedinstaller dot com? If it contains confidential information you can send us a small test project which reproduce this behavior.
Best regards,
Dan