C# AM standalone program memory release

I made a standalone program that collect all of DBelement from a project
code is work well, but it can't release memories and is killed from windows
Code is Below, i copied parts of them

Do you have any ides or ways to release memories.



#1 code

               TypeFilter filter = new TypeFilter(DbElementTypeInstance.SITE);
               DbElement world = MDB.CurrentMDB.GetFirstWorld(Aveva.Pdms.Database.DbType.Design);
               DBElementCollection collection = new DBElementCollection(world, filter);
               filter = null;
               world = null;

               long mem = 0;
               DbElement ele = null;
               DBElementEnumerator iter = (DBElementEnumerator)collection.GetEnumerator();
               while (iter.MoveNext())
               {
                   mem = GC.GetTotalMemory(true);
                   Console.WriteLine("memory : {0}", mem);

                   ele = (DbElement)iter.Current;
                   if (ele != null && ele.IsValid)
                   {
                      Get_Element_From_Site(ele, atts, adodb, tablename);  [COLOR="#FF0000"] // --> call #2 code [/COLOR]
                   }
                   ele = null;
               }
               Console.WriteLine("GetNameTable was finished");


#2 code
           DBElementCollection collection = new DBElementCollection(aSite, filter);  [COLOR="#FF0000"] // --> I think this collection variable doesn't release memory  [/COLOR]
           collection.IncludeRoot = true;

           List

This you done in Class Library ??

What is the Version Of Visual Studio??

it is standalone program and my VS version is 2010

Can you show us the Exception stack trace? This is quite hard to diagnose without having some information about which line (and call path) exactly leads to the OutOfMemoryException.

It's not an Exception, but I'm constantly checking for a lack of memory, and it's usually not a memory release when checking COG.