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If you start a process from ASP.NET using System.Diagonistics.Process.Start method. Process might start in the background (you can even see it in task manager), but you cant see it in the desktop.
This will happen because of two reasons.
1. By default, ASP.NET runs its worker process (Aspnet_wp.exe) with a weak account (the local machine account, which is named ASPNET) which don't have permission to interact with desktop.
2. By default, IIS Admin Service won't allow its application to interact with desktop.
These are steps that needs to be followed,
1. Give permission for ASP.NET worker process account (<localmachine>\ASPNET) to interact with desktop or allow ASP.NET worker process to run in SYSTEM account.
To know how to allow worker process to run in SYSTEM account and to know the default permissions of ASPNET account, check this article ()
2. Enable IIS Admin Service to interact with desktop
To configure this, follow this steps.
a. Open Control Panel and follow these steps: For Windows NT: click Services. For Windows 2000, Windows XP, and .NET Server: click Administrative Tools, and then click Services.
b. Double-click IIS Admin Service.
c. On the Log On tab, select the Allow Service to Interact with Desktop check box. Note: This article assumes that the IIS Admin Service runs as a local system.
d. Stop and restart the IIS Admin Service.
Steps to Reproduce the Behavior
1. In Microsoft Visual Studio .NET, create a new ASP.NET Web Application project by using Visual Basic .NET or Visual C# .NET. Name the project CreateProcess. By default, WebForm1.aspx is created.
2. Right-click WebForm1.aspx, and then click View Code.