I have one application that I have want to call from Sensetalk. So is there any way by which I can do that?
If you are trying to launch an application on the SUT, then you must use the same steps that a user would. You will need to either launch it by clicking on the appropriate item in the Start menu, or by doubleclicking its icon, or you can use the Run panel in the start menu. For the last option, you can use code like this:
typeText windowsKey, "r" // opens the Run panel typeText "/path/to/someApp.exe" & return