Windows service and aspx - asp.net

Question

1) I have a windows service which will download documents. Now it is saving correctly to textfile.
2) Class library which have load function and save function
3) Website for viewing the files load and save to database.
For this In my windows service I have a reference to class library.
In my website I have reference to class library . But when I run my website "Exception of type 'System.OutOfMemoryException' was thrown" error is showing.
I am confused as the reference made is wrong or not.Help will be greatly appreciated.
Thanks
Code in Class library SerLib
Public Function SavetoDB()
dim X As String
Dim obj As clsMRec
Try
cmd =
New SqlCommand
cmd.Connection = con
For Each obj In clsMCollect_mails
cmd.CommandText =
"Insert into Master(From,,Subject) Values('" & mailRecObj.From & "',' " & mailRecObj.Sub & "',')"
cmd.ExecuteNonQuery()
Next
Catch ex As Exception
X = ex.Message()
End Try
End Function
End Class
In the website
Dim insMarec As New clsMaRec
' Dim c As p
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
insMarec.SavetoDB()
End Sub
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
insMarec.LoadfromServer()
End Sub

Answer 1

It seems there is not a problem with your reference
System.OutOfMemoryException' It is thrown by the .NET Framework execution engine. It can occur during any allocation call during runtime.
Example that raises out-of-memory exception: C#
class Program
{
static void Main()
{
// This program attempts to create a string of 2.1 billion characters.
// ... This results in an out-of-memory error.
// ... It would require 4.2 billion bytes (4 gigabytes).
string value = new string('a', int.MaxValue);
}
}
Output
Unhandled Exception: OutOfMemoryException.
Question
How much memory can be assumed?
No specific amount of memory in bytes can be counted on when executing a program. For most programs that do not allocate huge amounts of memory, this is not a serious problem.
However:
If you have a problem with this exception and the cause is not obvious, you can use MemoryFailPoint to help diagnose the issue.
So finally check again your code where you made any mistake like above example...
or Add some code in your qustion so we can understand batter ..