OK, this must be a very very simple question for ASP programmers to answer. After I have gathered all the information I want from the user and after the user has clicked on a submit button, how do I make an operating system style call on the server. Now, I have already figured out how to create a function call in the ASP development environment that is called when the user clicks on the submit button. So my qesttion is to how to create a system level command through ASP. Specifically, I am using ASP.NET. Let me explain further. I have just completed a program that is very simular to the #3 AJAX demo that Joe Strgner has made on http://asp.net/learn/ajax-videos/ where he gets users to select from a group of "CascadingDropDown" control extender classes. When the user has selected from the third drop down control, a label is custom formatted and displays the group of selected options. What I want to do is this. After this is done, I want to have a "submit" button on this page which, when the user presses it, a call is made on the server side that will include the users selections as parameters. Something like this, for example: "CALL SOMEPROGRAM.EXE " selection_1, selection_2 I need to have some information specific to the user included in the submit. We are on an intranet and each user has an alias. How do I snag this information?