Private Declare Function HeapCreate Lib "kernel32.dll" (ByVal flOptions As Integer, ByVal dwInitialSize As Integer, ByVal dwMaximumSize As Integer) As Integer Private Declare Function HeapDestroy Lib "kernel32" (ByVal hHeap As IntPtr) As Integer Dim hHeap As Integer hHeap = HeapCreate(0, 1024& * 1024, 0) HeapDestroy(hHeap)