Hi Mark,

unfortunatelly we don't have experience with this. It would require to make some researching, mostly comparing the architecture with the lifecycle of pages in KenticoCMS.

May I ask -- have you already tried to host some of the Visual WebGui controls?

I'd also recommend this KB article: http://devnet.kentico.com/Knowledge-Base/Web-parts---Controls/Integrating-3rd-party-components-in-Kentico-CMS.aspx
where integration of similar control is described (with examples).

Regards,
Zdenek Cetkovsky, Kentico.