Is it possible to display camera live in Milestone machine by passing CameraId from webApplication ? If yes can you please let me know Thanks In Advance

You can run the Smart Client or the web client in the server. It is possible to navigate to all your cameras.

If this is not what you want, please tell me:

Which client do you want to use? Smart Client, web client or a client of your own you develop with the MIP SDK?

Please elaborate: How should it work? (It is unclear to me which id you want to use and how.)

I am thinking to pass cameraId to Event Source FQID and expecting to play live of that camera in Milestoneserver(smart Client/webClient).Please correct me if my way is wrong and provide me any sample which will trigger camera live in Milestonesystem (smartClient/webClient) by providing camera details from 3rd Application(.Net web Application).

Option 1, Please explore video Video Wall Controller. The VideoWallController sample demonstrates how to manage a Video Wall - https://doc.developer.milestonesys.com/html/index.html?base=samples/videowallcontroller_sample.html&tree=tree_search.html?search=videowall

Option 2, This might be complicated. You will implement Smart Client plugin and this plugin communicate with third party application.

Please explore Smart Client View and Window Tool, this sample also might be helpful for you - https://doc.developer.milestonesys.com/html/index.html?base=samples/smartclientview_windowtool_sample.html&tree=tree_search.html?search=scview+and+window

Can you please let me know whether there is possibility to communicate with milestone samples(Windows Application) from .Net Web Application

I have tried but no use why because provided samples are not web or WCF Services to consume?

You can develop your own communication, using your preferred method, into a MIP plugin in the Smart Client, no samples shows this. One communication method that is shown is using Message Communication and this is in the Chat plugin sample.