ASP.NET StreamWriter error

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I have created a simple logger for my ASP.NET 2.0 application.
I have this static function.
My problem is that no data is created in the test.log file.
I have added ASPNET user account administrator rights.
What am I missing here?

namespace MyNameSpace
{
public class LOG
{
public LOG()
{
}
public static void Log(string text)
{
try
{
using(StreamWriter sw = new StreamWriter("C:\\test.log"))
{
sw.Write(System.DateTime.Now.ToFileTime());
sw.Write("\t");
sw.Write(text);
sw.Write("\n");
}
}
catch { }
}
}
}

.

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