<t>Hello there,I have a performance problem relating to Excel with a C++ dll. Here is my point:I compile a dll with a simple function ( such as: sum by a loop ) then I open Excel , launch a simple vb macro to call this function.I try to compare the elapsed time to run it with excel ( VB + dll ) and ...

<t>Hello there,I have a performance problem relating to Excel with a C++ dll. Here is my point:I compile a dll with a simple function ( such as: sum by a loop ) then I open Excel , launch a simple vb macro to call this function.I try to compare the elapsed time to run it with excel ( VB + dll ) and ...