Launching Internet Explorer from a Web application - thanks to Gregory Correll

Question

This was driving me crazy as all the forums suggested, System.Diagnostics.Process.Start("IExplore.exe";(This works with .NET windows app , not the web). But the link "http://www.c-sharpcorner.com/Code/2002/Dec/IEInstance.asp" really gave me what I wanted & thanks to author Gregory Correll, this solved my problem. If possible,can somebody tell me why the first code does nt work with a web app.