I am using a 3rd party DLL in my application (someDll.DLL). If I remove the the DLL from the application directory and launch my app the app runs just fine until I open the form where it is needed and then I get a very ugly exception dialog (even if I have a custom try..catch around the instanciating of the form). So how can I gently notify the user that the DLL needed is not found? I would like to do this at when the app starts but I should probably also check for this when the DLL is needed.

Any assistance would be appreciated.

Thanks,
Einar