IDTSPath90 path = this.mainPipe.PathCollection.New();
            path.AttachPathAndPropagateNotifications(sourceComponent.OutputCollection[0], convComponent.InputCollection[0]);

            IDTSInput90 input = convComponent.InputCollection[0];
            IDTSVirtualInput90 virtualInput = input.GetVirtualInput();

            //Binder start og converted sammen. VirtualInput på converted er output på start                
            foreach (ModelColumnTransformation columnTransformation in transformation.Transfers)
            {
                foreach (IDTSVirtualInputColumn90 virtualColumn in virtualInput.VirtualInputColumnCollection)
                {
                    if (string.Compare(virtualColumn.Name, columnTransformation.FromColumn.Name, true) == 0 || (columnTransformation.FromColumn.Preformatted && columnTransformation.FromColumn.Name.EndsWith(" as \"" + virtualColumn.Name + "\"")))
                    {
                        convInstance.SetUsageType(input.ID, virtualInput, virtualColumn.LineageID, DTSUsageType.UT_READONLY);
                        IDTSOutputColumn90 outputColumn = convComponent.OutputCollection[0].OutputColumnCollection.New();
                        outputColumn.Name = virtualColumn.Name + " (Converted)";

                        outputColumn.SetDataTypeProperties(columnTransformation.ToColumn.DataType, columnTransformation.ToColumn.Length, columnTransformation.ToColumn.Precision, columnTransformation.ToColumn.Scale, 0);
                        outputColumn.ErrorRowDisposition = DTSRowDisposition.RD_FailComponent;
                        outputColumn.TruncationRowDisposition = DTSRowDisposition.RD_IgnoreFailure;
                        IDTSCustomProperty90 outputProp = outputColumn.CustomPropertyCollection.New();
                        outputProp.Name = "SourceInputColumnLineageID";//I expect this line to be the problem
                        outputProp.Value = virtualColumn.LineageID;//I expect this line to be the problem
                        outputProp = outputColumn.CustomPropertyCollection.New();
                        outputProp.Name = "FastParse";
                        outputProp.Value = false;
                        break;
                    }
                }
            }