Hi,
There is a similar discussion on the forum, please take a look:
http://www.advancedinstaller.com/forums ... al+feature
You can just use a conditional install level on that feature. Select the feature in the "Organization" tab and press F1. What it'll boil down to is conditioning it on the property attached to the radio button, so that it only installs when it is selected.
I'm afraid that this works only for components and not for features. This is because the Feature conditions (stored in the "Condition" table inside the MSI database) are processed during the "CostFinalize" action. After this stage (during the UI for example), any changes in the conditional expression evaluation do not affect the InstallLevel of the Features.
Regards,
Cosmin