Starting another application from VB.net Code

Question

Hi All,
            I am new to VB.Net. I am working on a project where I have to Start another applcation from web service. 

I am able to start the new application(Eq.Notepad) from form of my project. But If I try to start the new applciation from web service then The application is running in processes. I am able to see the application in Task manager processes. I am not able to see the application in front end.

I have tried ProcessStart, PSExecute , bat files running and their all parameters but nothing happened.

I am sure I am missing something but I dont know what exactly it is.
Can Any one help me out of this? I would be thank to them


Thanks in advance.

Balasubramanian Raja