Hello Ajai,
Where is the data coming from that will be loaded into Notepad? I am thinking of a slightly similar more direct approach... use a coded step to grab the data directly from the data source (file, DB, etc.) and enter it into the form of your web application. This bypasses launching Notepad and trying to use the clipboard for copy & paste, which can be a very unreliable error prone process.
All the best,
Cody
the Telerik team