Regarding Presentation server and Application server path validations

Hi All,

I need to Declare 2 parameters for Presentation server File Path & Application server file path.

Where if i want file to be taken from Desktop i will browse through Presentation server field & when i want file to be taken from Application Server[AL11] i will browse through Application server path and take the file into selection-screen.

1. In selection screen how do i need to declare above 2 fields!

2. How to validate both these paths.

Note: I need to browse and select the file from Desktop/AL11.

Thanks in advance.

Thanks,

Deep.