I'm experimenting with using iBO for .net with Coldfusion 8 (which offers .net integration). I'm on iMIS 15.1.3.
I have a basic app skeleton set up that during initialization attempts to create the iBO object, like this:
function setupApplication()
{
....
application.iBO = createObject( '.NET', 'iboAdmin.InitializeSystem()', 'c:\inetpub\wwwroot\bin\Asi.iBO.dll' );