Currently you can only inject CLR dialog into 'before install' dialog sequence. So the answer is no.
Though you can have your completely limit-free custom UI as external-UI or embedded-UI (samples are included in distro).
And very soon there will be a full CLR equivalent of the all standard MSI dialogs. It is what you most likely are looking for. But it's not just ready yet.
Though you can have your completely limit-free custom UI as external-UI or embedded-UI (samples are included in distro).
And very soon there will be a full CLR equivalent of the all standard MSI dialogs. It is what you most likely are looking for. But it's not just ready yet.