MessageBox after language selection but before welcome-screen

[Defcon0]

Hello,

I want to check wheather my software is installed already. is that's the case a message (yesNo) should be displayed that informs the user that he should deinstall first or ignore that.

The problem is, when displaying that message in on.Init there has not been any language selection window already.

How can I solve that problem ?

Thanks in forward.

Bye Defcon0