"Attempted to read or write protected memory. This is often an indication that other memory is corrupt

[n8wex]

Any thoughts on why this is not committing to the db I get the above error ob the db.

    Public Function SetCustomProperty(ByVal sPath As String, ByVal Name As String, ByVal Value As String) As Boolean

        Dim Builder As DatabaseSummaryInfoBuilder
        Using db As Database = New Database()
            db.ReadDwgFile(sPath, FileShare.ReadWrite, True, "")
            Builder = New DatabaseSummaryInfoBuilder(db.SummaryInfo)
            Using tr As Transaction = db.TransactionManager.StartTransaction()

                Try
                    If Builder.CustomPropertyTable(Name) Then
                        Builder.CustomPropertyTable.Item(Name) = Value
                    Else
                        Builder.CustomPropertyTable.Add(Name, Value)
                    End If

                    db.SummaryInfo = Builder.ToDatabaseSummaryInfo
                Catch
                    Return False
                End Try

                tr.Commit()
            End Using
        End Using
        Return True
    End Function