Noob question

I put this subin an webapplication project and it works OK, but in a windowsapplication project it generates an error "an unhandled exception of type system.security.securityexception"

VB Code:

Private Sub SearchDir(ByVal TargetDir As String)
        Dim Files() As String
        Dim File As String
 
        Files = IO.Directory.GetFiles(TargetDir, "*.*")
        lstFiles.Items.Clear()
        For Each File In Files
            lstFiles.Items.Add(File)
        Next
    End Sub

Why?

It was because I was storing the project on a network drive as where the ASP is saved to c:\inetpub\wwwrooot\

You'd have to change the .NET Framework security zones and increase the trust of the place you are trying to connect to.