ObjectScript is used to create COM components in Haskell. It is a `glue' component that can expose Haskell scripts (or any other language with a scriptserver interface) as Automation objects (Automation objects are COM objects that use dynamic binding).

Haskell objects behave just like normal COM objects and a client doesn't need to know at all that the component was written in Haskell. Since Visual Basic and Java use automation as their basic COM interface, it is very easy to integrate with these languages, allthough any COM compatible client can use Haskell objects.