# 456 Compiling BCB Applications Causes Compiler Warnings

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I am converting a CBuilder Version 3 (using Infobuilder 4 and FirstClass) application that worked yesterday. After removing my previous version, installing the new one, adding the InfoPower support, and fixing the include and Libr directories. The program builds.

However I now get severial versions of the following warnings:
[C++Warning] Dbbase.hpp(119): '_fastcall
Dbbase::TSystemList::NewInstance()' hides virtual function '_fastcall
System::TObject::NewInstance(System::TMetaClass *)'.
[C++Warning] Dbbase.hpp(148): '_fastcall
Dbbase::TMemoryFileList::NewInstance()' hides virtual function
'_fastcall System::TObject::NewInstance(System::TMetaClass *)'.
[C++Warning] Dbbase.hpp(170): '_fastcall
Dbbase::TPasswordList::NewInstance()' hides virtual function '_fastcall
System::TObject::NewInstance(System::TMetaClass *)'.
[C++Warning] Dbbase.hpp(208): '_fastcall
Dbbase::TFileSession::NewInstance()' hides virtual function '_fastcall
System::TObject::NewInstance(System::TMetaClass *)'.
[C++Warning] Dbbase.hpp(268): '_fastcall
Dbbase::TFileHandler::NewInstance()' hides virtual function '_fastcall
System::TObject::NewInstance(System::TMetaClass *)'.
[C++Warning] Dbbase.hpp(330): '_fastcall
Dbbase::TMemoryFile::NewInstance()' hides virtual function '_fastcall
System::TObject::NewInstance(System::TMetaClass *)'.
[C++Warning] Dbblob.hpp(164): '_fastcall Dbblob::TBlock::NewInstance()'
hides virtual function '_fastcall
System::TObject::NewInstance(System::TMetaClass *)'.
[C++Warning] Dbindx.hpp(413): '_fastcall Dbindx::TPage::NewInstance()'
hides virtual function '_fastcall
System::TObject::NewInstance(System::TMetaClass *)'.
[C++Warning] Dbindx.hpp(440): '_fastcall
Dbindx::TCallbackFilter::NewInstance()' hides virtual function
'_fastcall System::TObject::NewInstance(System::TMetaClass *)'.
[C++Warning] Dbindx.hpp(491): '_fastcall Dbindx::TFilter::NewInstance()'
hides virtual function '_fastcall
System::TObject::NewInstance(System::TMetaClass *)'.
[C++Warning] DBIsam.hpp(476): '_fastcall Dbisam::TRecord::NewInstance()'
hides virtual function '_fastcall
System::TObject::NewInstance(System::TMetaClass *)'.
[C++Warning] DBQury.hpp(198): '_fastcall
Dbqury::TDataQuery::NewInstance()' hides virtual function '_fastcall
System::TObject::NewInstance(System::TMetaClass *)'.
[C++Warning] DBQury.hpp(247): '_fastcall
Dbqury::TResultDataField::NewInstance()' hides virtual function
'_fastcall System::TObject::NewInstance(System::TMetaClass *)'.
[C++Warning] DBQury.hpp(273): '_fastcall
Dbqury::TOrderByDataField::NewInstance()' hides virtual function
'_fastcall System::TObject::NewInstance(System::TMetaClass *)'.
[C++Warning] DBQury.hpp(297): '_fastcall
Dbqury::TGroupByDataField::NewInstance()' hides virtual function
'_fastcall System::TObject::NewInstance(System::TMetaClass *)'.
[C++Warning] DBQury.hpp(332): '_fastcall
Dbqury::TSourceDataLink::NewInstance()' hides virtual function
'_fastcall System::TObject::NewInstance(System::TMetaClass *)'.
[C++Warning] DBQury.hpp(383): '_fastcall
Dbqury::TSourceDataFile::NewInstance()' hides virtual function
'_fastcall System::TObject::NewInstance(System::TMetaClass *)'.