Connecting custom TMathLib to SpreadGrid

Hi all!
I want to add some difficult custom functions with multiple parameters into SpreadGrid formulas.
I create TMathLib class and write a function code but it is not able to connect with Libs property on SpreadGrid using TLibBinder.
In my case creating registered component to place it on the form is not an option.
Is it able to do this?

Did you have a look at the sample custom library MiscMathLib.pas ?

This shows how it should be implemented and the libs created in this sample can be connected via TLibBinder