C / C++ / MFC

CPropertySheet MySheet("This is my installer");
CMyPage1 page1;
CMyPage2 page2;
...
CMyPageN pageN;

MySheet.AddPage(&page1);
MySheet.AddPage(&page2);
...
MySheet.AddPage(&pageN);

MySheet.SetWizardMode();
MySheet.m_psh.dwFlags |= PSH_NOAPPLYNOW; // disables the 'apply' button
// display the form and wait for the finish button
if (MySheet.DoModal() == ID_WIZFINISH)
{ AfxMessageBox("woop!"); }

BOOL CMyPage1::OnSetActive() 
{
   CPropertySheet* psheet = (CPropertySheet*) GetParent();   
   psheet->SetWizardButtons(PSWIZB_NEXT); // only have a next button on first page
   return CPropertyPage::OnSetActive();
}

BOOL CMyPage2::OnSetActive() 
{
	CPropertySheet* psheet = (CPropertySheet*) GetParent();   
	psheet->SetWizardButtons(PSWIZB_BACK | PSWIZB_NEXT); // have next and back on middle pages
	return CPropertyPage::OnSetActive();
}

BOOL CMyPageN::OnSetActive() 
{
	CPropertySheet* psheet = (CPropertySheet*) GetParent();   
	psheet->SetWizardButtons(PSWIZB_BACK | PSWIZB_FINISH); // have back and finish on last page
	return CPropertyPage::OnSetActive();
}

void CYourDlg::OnWindowPosChanging(WINDOWPOS* lpwndpos)
{
	CDialog::OnWindowPosChanging(lpwndpos);

	if(lpwndpos->flags&SWP_SHOWWINDOW)
	{
		if(m_bFirstShowWindow)
		{
			m_bFirstShowWindow=FALSE;            
			lpwndpos->flags&=~SWP_SHOWWINDOW;        
		}
    }
}