Could it be something under the Directory Security tab in the website properties? Are the apps running as different users?

>Using VS2005 on XP PRO SP2.
>
>I have two ASP.Net web applications on my dev pc. My web app 1 can NOT check for the existence of a file on our network drive. But my web app 2 can check for the existence of a file on the same network drive.
>
>What would cause this and how do I correct this?
>
>Here is the code I use to check for a file. This file does exist but web app 1 returns false, web app 2 returns true.
>

>if (System.IO.File.Exists("F:\data\somefile.txt") == true)
>

>
>Thanks,
>
>Jerry