Time: 4/20/2016 1:28:36 PM
Source: mscorlib
Message: COM object that has been separated from its underlying RCW cannot be used.
Stack Trace: 
   at System.StubHelpers.StubHelpers.GetCOMIPFromRCW(Object objSrc, IntPtr pCPCMD, IntPtr& ppTarget, Boolean& pfNeedsRelease)
   at Microsoft.Office.Interop.Word.DocumentClass.Close(Object& SaveChanges, Object& OriginalFormat, Object& RouteDocument)
   at ZEKSProClient_UAT.WordDocumentGeneration.AddSpecificationPage(Application wrdApp, DataTable dtItem, DataTable dtOptEquipMapping, DataTable dtOptEquip, String strSpecification)
   at ZEKSProClient_UAT.Quotation.GenerateQuotationDocument(String sl_QuotationXML)