When adding to my application the following statement

Qt Code: 
  1. QAxObject *excel = new QAxObject( "Excel.Application", this );
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I recieve the following linker error:

Qt Code: 
  1. 1>QAxContainer.lib(qaxbase.obj) : warning LNK4217: locally defined symbol _isupper imported in function "private: void __thiscall MetaObjectGenerator::addSetterSlot(class QByteArray const &;)" (?addSetterSlot@MetaObjectGenerator@@AAEXABVQByteArray@@@Z)
  2.  
  3. 1>QAxContainer.lib(qaxbase.obj) : error LNK2019: unresolved external symbol __imp__toupper referenced in function "private: void __thiscall MetaObjectGenerator::addSetterSlot(class QByteArray const &;)" (?addSetterSlot@MetaObjectGenerator@@AAEXABVQByteArray@@@Z)
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Any hints? I have already included in the linker the library QAxContainer.lib.

Thanks in advance!