Hello, (I don't know if that are the right place for this question, but i don't know any other place) I was trying to build LandXmlSdkDll1.1 project, in Visual C++ 2003 (ver 7.1). In the project property pages, the references to the external libs seems correct, but at the end of the build i recive the next error linking message: LandXmlSdkDll1.1 error LNK2019: unresolved external symbol "class LX::ReducedObservationCollection * __cdecl LX::createReducedObservationCollectionObject(class LX::DocumentImpl *)" (?createReducedObservationCollectionObject@LX@@YAPAVReducedObservationCollection@1@PAVDocumentImpl@1@@Z) referenced in function "public: __thiscall LX::ObservationGroupTmpl<class LX::ObservationGroup>::ObservationGroupTmpl<class LX::ObservationGroup>(class LX::DocumentImpl *)" (??0?$ObservationGroupTmpl@VObservationGroup@LX@@@LX@@QAE@PAVDocumentImpl@1@@Z) have u have any idea about the cause of thet error? Thanks in advance! ___________________________________ L'email della prossima generazione? Puoi averla con la nuova Yahoo! Mail: http://it.docs.yahoo.com/nowyoucan.html