File access denied, SecurityException

[codeName_GoldFish]

Hi all,

I'm writing a program to input a text file, manipulate the text file and output to another directory. Both the input and output files are on a mapped network drive on a server.

My problem is, when I execute the program from a local drive, it works fine, but when I copy the programs to the same server, and execute the programs from there, it throws a securityexception and tells me to store application data in an isolated storage and blah blah.

Thanks a lot in advance!

Here's the code,

Imports System.IO
Public Class Form1
    Private Sub btnRun_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnRun.Click
        Dim mySR As System.IO.StreamReader
        Dim mySW As System.IO.StreamWriter
        Dim intX As Integer, lngRcdCounter As Long
        Dim myLine() As String
        Dim strX As String
        Dim strSep As String = Chr(34) & "," & Chr(34)
 
[B]        mySR = New StreamReader("x:\input\test.csv")
        mySW = New StreamWriter("x:\output\test.txt")[/B] '<----(Here's where the exception is thrown)
 
        Do Until mySR.EndOfStream = True
            myLine = mySR.ReadLine.Split(strSep)
            For intX = myLine.GetLowerBound(0) To myLine.GetUpperBound(0)
                strX = myLine(intX).Trim.ToString & Chr(34)
                mySW.Write(strX)
            Next
            mySW.WriteLine()
            lngRcdCounter += 1
        Loop
        mySW.Flush()
        mySW.Close()
        MsgBox("Done. " & lngRcdCounter & " records processed")
 
    End Sub
End Class