https://www.aras.com/community/f/development/3616/dlls-in-method-config-are-loaded-with-internals(Aras 11.0 SP9) Hi, We're using Document.OpenXML to export the BOM list as an Excel file, and the recent update (2.8.x) included an "internal class IReadOnlyList" in the System.Collections.Generic namespace. his collides with the one in mscorlib, butja-JPTelligent Community 12