HTML generation task

System

I have a workflow as follows:

1. User submits form entry
2. Metadata capture screen pops up and user fills in the metadata and hits "Next".
3. HTML generation screen pops up and user fills in the path for generated file and the presentation template to use and hits "Next".
4. I add the generated file to the workflow and submit the content to staging.

For step 3, I want to use the generation UI that is available on clicking the Generate button when I create a new form entry.
Is this a CGI task (like iwmetadata.cgi) which I can use? If so, where can I find it?

thanks
Mani