Custom DefaultLocation for Application Folder Fails Install For Non-existent Drive

Question

I'm developing a Setup and Deployment project for a .NET application in VS 2008.

I've been asked to set the DefaultLocation property of the Application Folder to:

e:\SomeFolderName\bin

Our production systems have an e: drive.

However, when I run the installer on a test system that does not have an e: drive, the installer fails with this error message and aborts:

Invalid Drive: e:\

I'd like for it to just display the "Select installation path" dialog to allow the user to specify an alternative installation path, rather than failing so ungracefully.

Is there any way I can accomplish this?