using System;
using System.IO;
using System.Security.Permissions;
[FileIOPermissionAttribute(SecurityAction.Demand,All=@"c:\\temp")]
class MainClass
{
public static void Main()
{
FileStream fsOut = File.Create(@"c:\\temp\\test.txt");
StreamWriter sw = new StreamWriter(fsOut);
sw.WriteLine("str");
sw.Flush();
sw.Close();
}
}