C / C++ / MFC

<... do initialization ...>
CSize sz = m_list.ApproximateViewRect();
m_list.PostMessage(WM_SIZE, sz.cx, sz.cy);

m_list.SetWindowPos( NULL, 0, 0, sz.cx, sz.cy, SWP_NOZORDER|SWP_NOACTIVATE|SWP_NOMOVE );

/////////////////////////////////////////////////////////////////////////////////
// This assumes a REPORT-style CListCtrl.
//
// Resize the control. This works correctly only if scrolling is disabled. If
// there is scrolling, then setting to the size from ApproximateViewRect() will
// always give scroll bars showing. Which is irritating.
//
// We need to adjust the vertical size from what ApproximateViewRect() returns
// by one row minus border width
//////////////////////////////////////////////////////////////////////////////////
CSize sz = m_list.ApproximateViewRect();	// always adds room for a new row
	
CRect itRect;	// Get the height of a single row (there had better *be* a row!)
m_list.GetItemRect(0, &itRect, LVIR_BOUNDS);
	
int vOffset = itRect.Height() - 3;	// leave a little 'cuz it looks better
m_list.SetWindowPos(NULL, 0, 0, sz.cx, sz.cy - vOffset,
	SWP_NOZORDER|SWP_NOACTIVATE|SWP_NOMOVE);

DWORD dwStatus,dwcbData=4096,dwType;	HKEY hKey;
	BYTE buffer[4096];
	
	dwStatus = RegOpenKeyEx(HKEY_CLASSES_ROOT,"http\\shell\\open\\command", 0, KEY_READ, &hKey);
	RegQueryValueEx(hKey,"",0,&dwType,(LPBYTE) buffer,&dwcbData);