CreateDispatch error

MFC >> CreateDispatch error

Hello!

When Im trying to createdispatch to Excel 10 (office xp) I get the
COleException error "Invalid class string". Hope that anyone have an
idea why!?

This is my code..

::OleInitialize(NULL);

m_pExcel = NULL;
m_pWorkBooks = NULL;
m_pWorkbook = NULL;
m_pSheets = NULL;
m_pSheet = NULL;
m_pRange = NULL;

m_FileIsOpen = false;

_Application* m_pExcel = new _Application;
COleException *oe = new COleException;

// gets this information from the registry.
CLSID clsid;
::CLSIDFromProgID(L"Excel.Application.10", &clsid);

try{
if(m_pExcel->m_lpDispatch == NULL)
{

if(!m_pExcel->COleDispatchDriver::CreateDispatch(clsid, oe)){
oe->ReportError();
delete m_pExcel;
m_pExcel = NULL;
}
}

}catch (COleDispatchException * Error){
AfxMessageBox(Error->m_strDescription);
Error->Delete();
}

oe->Delete();

if( m_pExcel ){
m_pWorkBooks = new Workbooks(m_pExcel->GetWorkbooks());
}
}
::CoUninitialize();

Thanks in advance..

Visual Studio147