How to assign files in Debug mode 1

[hoohaahii]

Hi,
I'm a newbie in Visual Studio 2008. I'm trying to debug a code that copies an input file to and output file after doing some tweaks on its format. If I'me getting it right, instead of writing the command line with the input file and output file arguments, the debugger is going to do that for me, right! but what files would the debugger be running the code on?
shouldn't I assign sample files for the debugger to test the code on?
If the answer is yes, how can I do that in visual studio?

Thank you
A.Y.A

 

[xwb]

Right click on the project
Select Properties
In the dialog that appears, select Debugging
Fill in the command line parameters
OK/Apply the changes

 

[hoohaahii]

Thank you, I'll do that right away .